685255311416 has 64 divisors (see below), whose sum is σ = 1444140472320. Its totient is φ = 302459667840.

The previous prime is 685255311283. The next prime is 685255311449. The reversal of 685255311416 is 614113552586.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13060451 + ... + 13112813.

It is an arithmetic number, because the mean of its divisors is an integer number (22564694880).

Almost surely, 2^685255311416 is an apocalyptic number.

It is an amenable number.

685255311416 is an abundant number, since it is smaller than the sum of its proper divisors (758885160904).

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

685255311416 is a wasteful number, since it uses less digits than its factorization.

685255311416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57876 (or 57872 counting only the distinct ones).

The product of its digits is 864000, while the sum is 47.

The spelling of 685255311416 in words is "six hundred eighty-five billion, two hundred fifty-five million, three hundred eleven thousand, four hundred sixteen".