136554455631 has 32 divisors (see below), whose sum is σ = 204056395776. Its totient is φ = 80498448000.

The previous prime is 136554455623. The next prime is 136554455659.

136554455631 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 136554455631 - 2³ = 136554455623 is a prime.

It is a super-2 number, since 2×136554455631² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136554455431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4356786 + ... + 4388016.

It is an arithmetic number, because the mean of its divisors is an integer number (6376762368).

Almost surely, 2^136554455631 is an apocalyptic number.

136554455631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

136554455631 is a deficient number, since it is larger than the sum of its proper divisors (67501940145).

136554455631 is a wasteful number, since it uses less digits than its factorization.

136554455631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34863.

The product of its digits is 3240000, while the sum is 48.

The spelling of 136554455631 in words is "one hundred thirty-six billion, five hundred fifty-four million, four hundred fifty-five thousand, six hundred thirty-one".