16607863908 has 36 divisors (see below), whose sum is σ = 42287432460. Its totient is φ = 5495544576.

The previous prime is 16607863871. The next prime is 16607863933. The reversal of 16607863908 is 80936870661.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 14597955684 + 2009908224 = 120822^2 + 44832^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×16607863908² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1678753 + ... + 1688616.

Almost surely, 2^16607863908 is an apocalyptic number.

16607863908 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16607863908 is an abundant number, since it is smaller than the sum of its proper divisors (25679568552).

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

16607863908 is a wasteful number, since it uses less digits than its factorization.

16607863908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3367516 (or 3367511 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 16607863908 in words is "sixteen billion, six hundred seven million, eight hundred sixty-three thousand, nine hundred eight".