16131660 has 24 divisors (see below), whose sum is σ = 45168816. Its totient is φ = 4301760.

The previous prime is 16131653. The next prime is 16131677. The reversal of 16131660 is 6613161.

16131660 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 16131660.

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, 134371 + ... + 134490.

It is an arithmetic number, because the mean of its divisors is an integer number (1882034).

Almost surely, 2^16131660 is an apocalyptic number.

16131660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16131660 is an abundant number, since it is smaller than the sum of its proper divisors (29037156).

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

16131660 is a wasteful number, since it uses less digits than its factorization.

16131660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268873 (or 268871 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 16131660 is about 4016.4237824214. The cubic root of 16131660 is about 252.6734944615.

The spelling of 16131660 in words is "sixteen million, one hundred thirty-one thousand, six hundred sixty".