16660516004 has 24 divisors (see below), whose sum is σ = 32121363456. Its totient is φ = 7497980000.

The previous prime is 16660515973. The next prime is 16660516007. The reversal of 16660516004 is 40061506661.

It is not an unprimeable number, because it can be changed into a prime (16660516007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1870052 + ... + 1878939.

It is an arithmetic number, because the mean of its divisors is an integer number (1338390144).

Almost surely, 2^16660516004 is an apocalyptic number.

It is an amenable number.

16660516004 is a deficient number, since it is larger than the sum of its proper divisors (15460847452).

16660516004 is a wasteful number, since it uses less digits than its factorization.

16660516004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3749107 (or 3749105 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 16660516004 in words is "sixteen billion, six hundred sixty million, five hundred sixteen thousand, four".