8557234656 has 48 divisors (see below), whose sum is σ = 22715154000. Its totient is φ = 2820359168.

The previous prime is 8557234577. The next prime is 8557234661. The reversal of 8557234656 is 6564327558.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 8557234599 and 8557234608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492231 + ... + 509318.

It is an arithmetic number, because the mean of its divisors is an integer number (473232375).

Almost surely, 2^8557234656 is an apocalyptic number.

It is an amenable number.

8557234656 is an abundant number, since it is smaller than the sum of its proper divisors (14157919344).

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

8557234656 is a wasteful number, since it uses less digits than its factorization.

8557234656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001651 (or 1001643 counting only the distinct ones).

The product of its digits is 6048000, while the sum is 51.

The square root of 8557234656 is about 92505.3223117459. The cubic root of 8557234656 is about 2045.3979379552.

The spelling of 8557234656 in words is "eight billion, five hundred fifty-seven million, two hundred thirty-four thousand, six hundred fifty-six".