16260386920 has 32 divisors (see below), whose sum is σ = 37185644520. Its totient is φ = 6397528320.

The previous prime is 16260386917. The next prime is 16260386951. The reversal of 16260386920 is 2968306261.

It can be written as a sum of positive squares in 4 ways, for example, as 11567862916 + 4692524004 = 107554^2 + 68502^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3329607 + ... + 3334486.

Almost surely, 2^16260386920 is an apocalyptic number.

16260386920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16260386920 is an abundant number, since it is smaller than the sum of its proper divisors (20925257600).

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

16260386920 is a wasteful number, since it uses less digits than its factorization.

16260386920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6664165 (or 6664161 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 16260386920 in words is "sixteen billion, two hundred sixty million, three hundred eighty-six thousand, nine hundred twenty".