16536947464665 has 384 divisors, whose sum is σ = 33375019991040. Its totient is φ = 7527168000000.

The previous prime is 16536947464643. The next prime is 16536947464699. The reversal of 16536947464665 is 56646474963561.

16536947464665 is a `hidden beast` number, since 1 + 6 + 5 + 3 + 6 + 94 + 74 + 6 + 466 + 5 = 666.

16536947464665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16536947464665 - 2⁸ = 16536947464409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16536947464593 and 16536947464602.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 18770655025 + ... + 18770655905.

It is an arithmetic number, because the mean of its divisors is an integer number (86914114560).

Almost surely, 2^{16536947464665} is an apocalyptic number.

16536947464665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16536947464665 is an abundant number, since it is smaller than the sum of its proper divisors (16838072526375).

16536947464665 is a wasteful number, since it uses less digits than its factorization.

16536947464665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1757 (or 1754 counting only the distinct ones).

The product of its digits is 2351462400, while the sum is 72.

The spelling of 16536947464665 in words is "sixteen trillion, five hundred thirty-six billion, nine hundred forty-seven million, four hundred sixty-four thousand, six hundred sixty-five".