136644424401 has 16 divisors (see below), whose sum is σ = 183138480000. Its totient is φ = 90623478528.

The previous prime is 136644424337. The next prime is 136644424421. The reversal of 136644424401 is 104424446631.

It is a happy number.

It is not a de Polignac number, because 136644424401 - 2⁶ = 136644424337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136644424401.

It is not an unprimeable number, because it can be changed into a prime (136644424421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4472425 + ... + 4502873.

It is an arithmetic number, because the mean of its divisors is an integer number (11446155000).

Almost surely, 2^136644424401 is an apocalyptic number.

It is an amenable number.

136644424401 is a deficient number, since it is larger than the sum of its proper divisors (46494055599).

136644424401 is a wasteful number, since it uses less digits than its factorization.

136644424401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38168.

The product of its (nonzero) digits is 221184, while the sum is 39.

The spelling of 136644424401 in words is "one hundred thirty-six billion, six hundred forty-four million, four hundred twenty-four thousand, four hundred one".