857164656 has 40 divisors (see below), whose sum is σ = 2231793664. Its totient is φ = 283469760.

The previous prime is 857164639. The next prime is 857164669. The reversal of 857164656 is 656461758.

857164656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 64210 + ... + 76401.

Almost surely, 2^857164656 is an apocalyptic number.

It is an amenable number.

857164656 is an abundant number, since it is smaller than the sum of its proper divisors (1374629008).

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

857164656 is a wasteful number, since it uses less digits than its factorization.

857164656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140749 (or 140743 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 48.

The square root of 857164656 is about 29277.3744724489. The cubic root of 857164656 is about 949.9223042645.

The spelling of 857164656 in words is "eight hundred fifty-seven million, one hundred sixty-four thousand, six hundred fifty-six".