136445585544631 has 12 divisors (see below), whose sum is σ = 151462303711992. Its totient is φ = 122813308310000.

The previous prime is 136445585544599. The next prime is 136445585544661.

It is a happy number.

136445585544631 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 136445585544631 - 2⁵ = 136445585544599 is a prime.

It is a super-2 number, since 2×136445585544631² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136445585544661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5582410885 + ... + 5582435326.

It is an arithmetic number, because the mean of its divisors is an integer number (12621858642666).

Almost surely, 2^{136445585544631} is an apocalyptic number.

136445585544631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

136445585544631 is a deficient number, since it is larger than the sum of its proper divisors (15016718167361).

136445585544631 is a wasteful number, since it uses less digits than its factorization.

136445585544631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11164846334 (or 11164846323 counting only the distinct ones).

The product of its digits is 414720000, while the sum is 64.

The spelling of 136445585544631 in words is "one hundred thirty-six trillion, four hundred forty-five billion, five hundred eighty-five million, five hundred forty-four thousand, six hundred thirty-one".