16623540063635 has 8 divisors (see below), whose sum is σ = 19983680136720. Its totient is φ = 13275210677344.

The previous prime is 16623540063607. The next prime is 16623540063679. The reversal of 16623540063635 is 53636004532661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16623540063635 is a prime.

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, 2952668600 + ... + 2952674229.

It is an arithmetic number, because the mean of its divisors is an integer number (2497960017090).

Almost surely, 2^{16623540063635} is an apocalyptic number.

16623540063635 is a deficient number, since it is larger than the sum of its proper divisors (3360140073085).

16623540063635 is an equidigital number, since it uses as much as digits as its factorization.

16623540063635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5905343397.

The product of its (nonzero) digits is 6998400, while the sum is 50.

The spelling of 16623540063635 in words is "sixteen trillion, six hundred twenty-three billion, five hundred forty million, sixty-three thousand, six hundred thirty-five".