1158538655232 has 480 divisors, whose sum is σ = 3941535916032. Its totient is φ = 320718569472.

The previous prime is 1158538655159. The next prime is 1158538655257. The reversal of 1158538655232 is 2325568358511.

1158538655232 is a `hidden beast` number, since 1 + 1 + 5 + 8 + 5 + 3 + 86 + 552 + 3 + 2 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 176146728 + ... + 176153304.

Almost surely, 2^{1158538655232} is an apocalyptic number.

1158538655232 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 1158538655232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1970767958016).

1158538655232 is an abundant number, since it is smaller than the sum of its proper divisors (2782997260800).

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

1158538655232 is a wasteful number, since it uses less digits than its factorization.

1158538655232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6778 (or 6759 counting only the distinct ones).

The product of its digits is 8640000, while the sum is 54.

The spelling of 1158538655232 in words is "one trillion, one hundred fifty-eight billion, five hundred thirty-eight million, six hundred fifty-five thousand, two hundred thirty-two".