623536166421313 has 4 divisors (see below), whose sum is σ = 624956522153920. Its totient is φ = 622115810688708.

The previous prime is 623536166421283. The next prime is 623536166421341. The reversal of 623536166421313 is 313124661635326.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-623536166421313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (623536166421383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 710177865645 + ... + 710177866522.

It is an arithmetic number, because the mean of its divisors is an integer number (156239130538480).

Almost surely, 2^{623536166421313} is an apocalyptic number.

It is an amenable number.

623536166421313 is a deficient number, since it is larger than the sum of its proper divisors (1420355732607).

623536166421313 is a wasteful number, since it uses less digits than its factorization.

623536166421313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420355732606.

The product of its digits is 8398080, while the sum is 52.

The spelling of 623536166421313 in words is "six hundred twenty-three trillion, five hundred thirty-six billion, one hundred sixty-six million, four hundred twenty-one thousand, three hundred thirteen".