16564636055674 has 128 divisors (see below), whose sum is σ = 30564361175040. Its totient is φ = 6579236664000.

The previous prime is 16564636055573. The next prime is 16564636055677. The reversal of 16564636055674 is 47655063646561.

It is not an unprimeable number, because it can be changed into a prime (16564636055677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2831074849 + ... + 2831080699.

It is an arithmetic number, because the mean of its divisors is an integer number (238784071680).

Almost surely, 2^{16564636055674} is an apocalyptic number.

16564636055674 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16564636055674 is a deficient number, since it is larger than the sum of its proper divisors (13999725119366).

16564636055674 is a wasteful number, since it uses less digits than its factorization.

16564636055674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7536.

The product of its (nonzero) digits is 326592000, while the sum is 64.

The spelling of 16564636055674 in words is "sixteen trillion, five hundred sixty-four billion, six hundred thirty-six million, fifty-five thousand, six hundred seventy-four".