136566550013 has 4 divisors (see below), whose sum is σ = 136567934880. Its totient is φ = 136565165148.

The previous prime is 136566549971. The next prime is 136566550031. The reversal of 136566550013 is 310055665631.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136566550013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136566550033) 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, 532145 + ... + 745862.

It is an arithmetic number, because the mean of its divisors is an integer number (34141983720).

Almost surely, 2^136566550013 is an apocalyptic number.

It is an amenable number.

136566550013 is a deficient number, since it is larger than the sum of its proper divisors (1384867).

136566550013 is a wasteful number, since it uses less digits than its factorization.

136566550013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384866.

The product of its (nonzero) digits is 243000, while the sum is 41.

The spelling of 136566550013 in words is "one hundred thirty-six billion, five hundred sixty-six million, five hundred fifty thousand, thirteen".