855311688 has 96 divisors (see below), whose sum is σ = 2888084160. Its totient is φ = 222157440.

The previous prime is 855311663. The next prime is 855311713. The reversal of 855311688 is 886113558.

855311688 is a `hidden beast` number, since 8 + 553 + 1 + 16 + 88 = 666.

It is an interprime number because it is at equal distance from previous prime (855311663) and next prime (855311713).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71595 + ... + 82682.

It is an arithmetic number, because the mean of its divisors is an integer number (30084210).

Almost surely, 2^855311688 is an apocalyptic number.

855311688 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

855311688 is an abundant number, since it is smaller than the sum of its proper divisors (2032772472).

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

855311688 is a wasteful number, since it uses less digits than its factorization.

855311688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154307 (or 154300 counting only the distinct ones).

The product of its digits is 230400, while the sum is 45.

The square root of 855311688 is about 29245.7123011220. The cubic root of 855311688 is about 949.2373150996.

The spelling of 855311688 in words is "eight hundred fifty-five million, three hundred eleven thousand, six hundred eighty-eight".