136641408718 has 16 divisors (see below), whose sum is σ = 211671907200. Its totient is φ = 66086150400.

The previous prime is 136641408667. The next prime is 136641408719. The reversal of 136641408718 is 817804146631.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136641408719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375943 + ... + 643906.

It is an arithmetic number, because the mean of its divisors is an integer number (13229494200).

Almost surely, 2^136641408718 is an apocalyptic number.

136641408718 is a deficient number, since it is larger than the sum of its proper divisors (75030498482).

136641408718 is a wasteful number, since it uses less digits than its factorization.

136641408718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022043.

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 136641408718 in words is "one hundred thirty-six billion, six hundred forty-one million, four hundred eight thousand, seven hundred eighteen".