1196820141678 has 128 divisors (see below), whose sum is σ = 3070613145600. Its totient is φ = 338456641536.

The previous prime is 1196820141641. The next prime is 1196820141679. The reversal of 1196820141678 is 8761410286911.

1196820141678 is a `hidden beast` number, since 1 + 19 + 6 + 8 + 201 + 416 + 7 + 8 = 666.

It is a super-2 number, since 2×1196820141678² (a number of 25 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 (1196820141679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 89891950 + ... + 89905262.

It is an arithmetic number, because the mean of its divisors is an integer number (23989165200).

Almost surely, 2^{1196820141678} is an apocalyptic number.

1196820141678 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1196820141678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1535306572800).

1196820141678 is an abundant number, since it is smaller than the sum of its proper divisors (1873793003922).

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

1196820141678 is a wasteful number, since it uses less digits than its factorization.

1196820141678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15743 (or 15737 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 54.

The spelling of 1196820141678 in words is "one trillion, one hundred ninety-six billion, eight hundred twenty million, one hundred forty-one thousand, six hundred seventy-eight".