16660131884 has 24 divisors (see below), whose sum is σ = 31817490768. Its totient is φ = 7569981440.

The previous prime is 16660131871. The next prime is 16660131899. The reversal of 16660131884 is 48813106661.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 52364 + ... + 189900.

It is an arithmetic number, because the mean of its divisors is an integer number (1325728782).

Almost surely, 2^16660131884 is an apocalyptic number.

It is an amenable number.

16660131884 is a deficient number, since it is larger than the sum of its proper divisors (15157358884).

16660131884 is a wasteful number, since it uses less digits than its factorization.

16660131884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140305 (or 140303 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The spelling of 16660131884 in words is "sixteen billion, six hundred sixty million, one hundred thirty-one thousand, eight hundred eighty-four".