136861345555 has 16 divisors (see below), whose sum is σ = 186953681664. Its totient is φ = 95207891680.

The previous prime is 136861345553. The next prime is 136861345597. The reversal of 136861345555 is 555543168631.

It is not a de Polignac number, because 136861345555 - 2¹ = 136861345553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136861345553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54094129 + ... + 54096658.

It is an arithmetic number, because the mean of its divisors is an integer number (11684605104).

Almost surely, 2^136861345555 is an apocalyptic number.

136861345555 is a deficient number, since it is larger than the sum of its proper divisors (50092336109).

136861345555 is a wasteful number, since it uses less digits than its factorization.

136861345555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108190826.

The product of its digits is 6480000, while the sum is 52.

The spelling of 136861345555 in words is "one hundred thirty-six billion, eight hundred sixty-one million, three hundred forty-five thousand, five hundred fifty-five".