136402517566425 has 48 divisors (see below), whose sum is σ = 246023332195392. Its totient is φ = 66133803590400.

The previous prime is 136402517566409. The next prime is 136402517566457. The reversal of 136402517566425 is 524665715204631.

It is not a de Polignac number, because 136402517566425 - 2⁴ = 136402517566409 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 75599907 + ... + 77383143.

It is an arithmetic number, because the mean of its divisors is an integer number (5125486087404).

Almost surely, 2^{136402517566425} is an apocalyptic number.

136402517566425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136402517566425 is a deficient number, since it is larger than the sum of its proper divisors (109620814628967).

136402517566425 is a wasteful number, since it uses less digits than its factorization.

136402517566425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875978 (or 1875973 counting only the distinct ones).

The product of its (nonzero) digits is 36288000, while the sum is 57.

The spelling of 136402517566425 in words is "one hundred thirty-six trillion, four hundred two billion, five hundred seventeen million, five hundred sixty-six thousand, four hundred twenty-five".