118821645792 has 192 divisors, whose sum is σ = 368267860800. Its totient is φ = 37143429120.

The previous prime is 118821645791. The next prime is 118821645793. The reversal of 118821645792 is 297546128811.

118821645792 is a `hidden beast` number, since 1 + 1 + 8 + 8 + 2 + 1 + 64 + 579 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (118821645791) and next prime (118821645793).

It is a super-2 number, since 2×118821645792² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118821645791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4112934 + ... + 4141722.

It is an arithmetic number, because the mean of its divisors is an integer number (1918061775).

Almost surely, 2^118821645792 is an apocalyptic number.

118821645792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 118821645792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184133930400).

118821645792 is an abundant number, since it is smaller than the sum of its proper divisors (249446215008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118821645792 is a wasteful number, since it uses less digits than its factorization.

118821645792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29106 (or 29092 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 54.

The spelling of 118821645792 in words is "one hundred eighteen billion, eight hundred twenty-one million, six hundred forty-five thousand, seven hundred ninety-two".