136680705870655 has 32 divisors (see below), whose sum is σ = 166798025243136. Its totient is φ = 107492449680000.

The previous prime is 136680705870649. The next prime is 136680705870689. The reversal of 136680705870655 is 556078507086631.

It is not a de Polignac number, because 136680705870655 - 2¹⁷ = 136680705739583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5011929670 + ... + 5011956940.

It is an arithmetic number, because the mean of its divisors is an integer number (5212438288848).

Almost surely, 2^{136680705870655} is an apocalyptic number.

136680705870655 is a deficient number, since it is larger than the sum of its proper divisors (30117319372481).

136680705870655 is a wasteful number, since it uses less digits than its factorization.

136680705870655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35839.

The product of its (nonzero) digits is 254016000, while the sum is 67.

The spelling of 136680705870655 in words is "one hundred thirty-six trillion, six hundred eighty billion, seven hundred five million, eight hundred seventy thousand, six hundred fifty-five".