8557496045556 has 48 divisors (see below), whose sum is σ = 20410989682944. Its totient is φ = 2789252758656.

The previous prime is 8557496045551. The next prime is 8557496045561. The reversal of 8557496045556 is 6555406947558.

It is an interprime number because it is at equal distance from previous prime (8557496045551) and next prime (8557496045561).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8557496045551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6324475 + ... + 7557378.

It is an arithmetic number, because the mean of its divisors is an integer number (425228951728).

Almost surely, 2^{8557496045556} is an apocalyptic number.

It is an amenable number.

8557496045556 is an abundant number, since it is smaller than the sum of its proper divisors (11853493637388).

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

8557496045556 is a wasteful number, since it uses less digits than its factorization.

8557496045556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13883000 (or 13882998 counting only the distinct ones).

The product of its (nonzero) digits is 907200000, while the sum is 69.

The spelling of 8557496045556 in words is "eight trillion, five hundred fifty-seven billion, four hundred ninety-six million, forty-five thousand, five hundred fifty-six".