857562256168 has 16 divisors (see below), whose sum is σ = 1617793829280. Its totient is φ = 426150568368.

The previous prime is 857562256157. The next prime is 857562256171. The reversal of 857562256168 is 861652265758.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328818580 + ... + 328821187.

It is an arithmetic number, because the mean of its divisors is an integer number (101112114330).

Almost surely, 2^857562256168 is an apocalyptic number.

It is an amenable number.

857562256168 is a deficient number, since it is larger than the sum of its proper divisors (760231573112).

857562256168 is a wasteful number, since it uses less digits than its factorization.

857562256168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657639936 (or 657639932 counting only the distinct ones).

The product of its digits is 48384000, while the sum is 61.

The spelling of 857562256168 in words is "eight hundred fifty-seven billion, five hundred sixty-two million, two hundred fifty-six thousand, one hundred sixty-eight".