136556045507 has 4 divisors (see below), whose sum is σ = 156064052016. Its totient is φ = 117048039000.

The previous prime is 136556045501. The next prime is 136556045551. The reversal of 136556045507 is 705540655631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 705540655631 = 7 ⋅100791522233.

It is a cyclic number.

It is not a de Polignac number, because 136556045507 - 2⁶ = 136556045443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136556045501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9754003244 + ... + 9754003257.

It is an arithmetic number, because the mean of its divisors is an integer number (39016013004).

Almost surely, 2^136556045507 is an apocalyptic number.

136556045507 is a deficient number, since it is larger than the sum of its proper divisors (19508006509).

136556045507 is an equidigital number, since it uses as much as digits as its factorization.

136556045507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19508006508.

The product of its (nonzero) digits is 1890000, while the sum is 47.

The spelling of 136556045507 in words is "one hundred thirty-six billion, five hundred fifty-six million, forty-five thousand, five hundred seven".