636066402431233 has 32 divisors (see below), whose sum is σ = 716704901644032. Its totient is φ = 561283666944000.

The previous prime is 636066402431209. The next prime is 636066402431261. The reversal of 636066402431233 is 332134204660636.

It is a cyclic number.

It is not a de Polignac number, because 636066402431233 - 2²⁵ = 636066368876801 is a prime.

It is a super-2 number, since 2×636066402431233² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (636066402432233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7177713 + ... + 36382033.

It is an arithmetic number, because the mean of its divisors is an integer number (22397028176376).

Almost surely, 2^{636066402431233} is an apocalyptic number.

It is an amenable number.

636066402431233 is a deficient number, since it is larger than the sum of its proper divisors (80638499212799).

636066402431233 is a wasteful number, since it uses less digits than its factorization.

636066402431233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29205465.

The product of its (nonzero) digits is 6718464, while the sum is 49.

The spelling of 636066402431233 in words is "six hundred thirty-six trillion, sixty-six billion, four hundred two million, four hundred thirty-one thousand, two hundred thirty-three".