53581118976 has 1440 divisors, whose sum is σ = 220062915072. Its totient is φ = 12819824640.

The previous prime is 53581118971. The next prime is 53581118999. The reversal of 53581118976 is 67981118535.

It is a happy number.

53581118976 is a `hidden beast` number, since 53 + 581 + 1 + 1 + 8 + 9 + 7 + 6 = 666.

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 (53581118971) 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 143 ways as a sum of consecutive naturals, for example, 1140023785 + ... + 1140023831.

Almost surely, 2^53581118976 is an apocalyptic number.

53581118976 is a gapful number since it is divisible by the number (56) 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 53581118976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110031457536).

53581118976 is an abundant number, since it is smaller than the sum of its proper divisors (166481796096).

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

53581118976 is a wasteful number, since it uses less digits than its factorization.

53581118976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122 (or 87 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 54.

The spelling of 53581118976 in words is "fifty-three billion, five hundred eighty-one million, one hundred eighteen thousand, nine hundred seventy-six".