136405560065 has 16 divisors (see below), whose sum is σ = 165195650880. Its totient is φ = 108122867520.

The previous prime is 136405560047. The next prime is 136405560091. The reversal of 136405560065 is 560065504631.

It is not a de Polignac number, because 136405560065 - 2⁸ = 136405559809 is a prime.

It is an unprimeable number.

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, 27191 + ... + 523020.

It is an arithmetic number, because the mean of its divisors is an integer number (10324728180).

Almost surely, 2^136405560065 is an apocalyptic number.

It is an amenable number.

136405560065 is a deficient number, since it is larger than the sum of its proper divisors (28790090815).

136405560065 is a wasteful number, since it uses less digits than its factorization.

136405560065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550672.

The product of its (nonzero) digits is 324000, while the sum is 41.

The spelling of 136405560065 in words is "one hundred thirty-six billion, four hundred five million, five hundred sixty thousand, sixty-five".