16131548906 has 48 divisors (see below), whose sum is σ = 27231357384. Its totient is φ = 7159680000.

The previous prime is 16131548887. The next prime is 16131548941. The reversal of 16131548906 is 60984513161.

It can be written as a sum of positive squares in 4 ways, for example, as 14857415881 + 1274133025 = 121891^2 + 35695^2 .

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, 1779746 + ... + 1788786.

Almost surely, 2^16131548906 is an apocalyptic number.

16131548906 is a deficient number, since it is larger than the sum of its proper divisors (11099808478).

16131548906 is a wasteful number, since it uses less digits than its factorization.

16131548906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9239 (or 9228 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The spelling of 16131548906 in words is "sixteen billion, one hundred thirty-one million, five hundred forty-eight thousand, nine hundred six".