136620641604 has 24 divisors (see below), whose sum is σ = 318884983200. Its totient is φ = 45525430144.

The previous prime is 136620641587. The next prime is 136620641609. The reversal of 136620641604 is 406146026631.

It is not an unprimeable number, because it can be changed into a prime (136620641609) 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, 1809429 + ... + 1883420.

It is an arithmetic number, because the mean of its divisors is an integer number (13286874300).

Almost surely, 2^136620641604 is an apocalyptic number.

It is an amenable number.

136620641604 is an abundant number, since it is smaller than the sum of its proper divisors (182264341596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136620641604 is a wasteful number, since it uses less digits than its factorization.

136620641604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3695939 (or 3695937 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 136620641604 in words is "one hundred thirty-six billion, six hundred twenty million, six hundred forty-one thousand, six hundred four".