136721714383506 has 64 divisors (see below), whose sum is σ = 313924053639168. Its totient is φ = 38886204981888.

The previous prime is 136721714383453. The next prime is 136721714383559. The reversal of 136721714383506 is 605383417127631.

It is an interprime number because it is at equal distance from previous prime (136721714383453) and next prime (136721714383559).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 189742101 + ... + 190461303.

It is an arithmetic number, because the mean of its divisors is an integer number (4905063338112).

Almost surely, 2^{136721714383506} is an apocalyptic number.

136721714383506 is an abundant number, since it is smaller than the sum of its proper divisors (177202339255662).

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

136721714383506 is a wasteful number, since it uses less digits than its factorization.

136721714383506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739735.

The product of its (nonzero) digits is 15240960, while the sum is 57.

The spelling of 136721714383506 in words is "one hundred thirty-six trillion, seven hundred twenty-one billion, seven hundred fourteen million, three hundred eighty-three thousand, five hundred six".