157677255705 has 16 divisors (see below), whose sum is σ = 252611694720. Its totient is φ = 83985174528.

The previous prime is 157677255683. The next prime is 157677255707. The reversal of 157677255705 is 507552776751.

It is a de Polignac number, because none of the positive numbers 2^k-157677255705 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157677255707) 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, 6823197 + ... + 6846266.

It is an arithmetic number, because the mean of its divisors is an integer number (15788230920).

Almost surely, 2^157677255705 is an apocalyptic number.

157677255705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157677255705 is a deficient number, since it is larger than the sum of its proper divisors (94934439015).

157677255705 is a wasteful number, since it uses less digits than its factorization.

157677255705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13670240.

The product of its (nonzero) digits is 18007500, while the sum is 57.

The spelling of 157677255705 in words is "one hundred fifty-seven billion, six hundred seventy-seven million, two hundred fifty-five thousand, seven hundred five".