136664044443 has 12 divisors (see below), whose sum is σ = 197419516008. Its totient is φ = 91102026240.

The previous prime is 136664044421. The next prime is 136664044477. The reversal of 136664044443 is 344440466631.

It is not a de Polignac number, because 136664044443 - 2⁵ = 136664044411 is a prime.

It is a super-2 number, since 2×136664044443² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136664044403) 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, 492198 + ... + 718043.

It is an arithmetic number, because the mean of its divisors is an integer number (16451626334).

Almost surely, 2^136664044443 is an apocalyptic number.

136664044443 is a deficient number, since it is larger than the sum of its proper divisors (60755471565).

136664044443 is a wasteful number, since it uses less digits than its factorization.

136664044443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222794 (or 1222791 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 45.

The spelling of 136664044443 in words is "one hundred thirty-six billion, six hundred sixty-four million, forty-four thousand, four hundred forty-three".