36520664231 has 8 divisors (see below), whose sum is σ = 37609785600. Its totient is φ = 35447213880.

The previous prime is 36520664227. The next prime is 36520664291. The reversal of 36520664231 is 13246602563.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 36520664231 - 2² = 36520664227 is a prime.

It is a super-2 number, since 2×36520664231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36520664291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3913025 + ... + 3922346.

It is an arithmetic number, because the mean of its divisors is an integer number (4701223200).

Almost surely, 2^36520664231 is an apocalyptic number.

36520664231 is a deficient number, since it is larger than the sum of its proper divisors (1089121369).

36520664231 is an equidigital number, since it uses as much as digits as its factorization.

36520664231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7835509.

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 36520664231 in words is "thirty-six billion, five hundred twenty million, six hundred sixty-four thousand, two hundred thirty-one".