16868662416 has 60 divisors (see below), whose sum is σ = 47448544572. Its totient is φ = 5594335488.

The previous prime is 16868662373. The next prime is 16868662523. The reversal of 16868662416 is 61426686861.

16868662416 is a `hidden beast` number, since 1 + 6 + 8 + 6 + 8 + 6 + 624 + 1 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16734009600 + 134652816 = 129360^2 + 11604^2 .

It is a super-3 number, since 3×16868662416³ (a number of 32 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

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 11 ways as a sum of consecutive naturals, for example, 268951 + ... + 325686.

Almost surely, 2^16868662416 is an apocalyptic number.

16868662416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16868662416 is an abundant number, since it is smaller than the sum of its proper divisors (30579882156).

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

16868662416 is a wasteful number, since it uses less digits than its factorization.

16868662416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594848 (or 594839 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 54.

The spelling of 16868662416 in words is "sixteen billion, eight hundred sixty-eight million, six hundred sixty-two thousand, four hundred sixteen".