16660374653616 has 80 divisors (see below), whose sum is σ = 46040829385824. Its totient is φ = 5172899807232.

The previous prime is 16660374653597. The next prime is 16660374653639. The reversal of 16660374653616 is 61635647306661.

It is a happy number.

16660374653616 is digitally balanced in base 2, because in such base 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 16660374653616.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105163765 + ... + 105322068.

Almost surely, 2^{16660374653616} is an apocalyptic number.

16660374653616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16660374653616 is an abundant number, since it is smaller than the sum of its proper divisors (29380454732208).

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

16660374653616 is a wasteful number, since it uses less digits than its factorization.

16660374653616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210485958 (or 210485952 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 60.

The spelling of 16660374653616 in words is "sixteen trillion, six hundred sixty billion, three hundred seventy-four million, six hundred fifty-three thousand, six hundred sixteen".