1157513056506 has 24 divisors (see below), whose sum is σ = 2511649479924. Its totient is φ = 385267758720.

The previous prime is 1157513056501. The next prime is 1157513056517. The reversal of 1157513056506 is 6056503157511.

1157513056506 is a `hidden beast` number, since 1 + 1 + 5 + 7 + 5 + 130 + 5 + 6 + 506 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1050676250625 + 106836805881 = 1025025^2 + 326859^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1157513056501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47481375 + ... + 47505746.

Almost surely, 2^{1157513056506} is an apocalyptic number.

1157513056506 is an abundant number, since it is smaller than the sum of its proper divisors (1354136423418).

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

1157513056506 is a wasteful number, since it uses less digits than its factorization.

1157513056506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94987806 (or 94987803 counting only the distinct ones).

The product of its (nonzero) digits is 472500, while the sum is 45.

The spelling of 1157513056506 in words is "one trillion, one hundred fifty-seven billion, five hundred thirteen million, fifty-six thousand, five hundred six".