136653646665 has 16 divisors (see below), whose sum is σ = 218711910528. Its totient is φ = 72859919616.

The previous prime is 136653646609. The next prime is 136653646697. The reversal of 136653646665 is 566646356631.

It is a happy number.

It is not a de Polignac number, because 136653646665 - 2¹⁵ = 136653613897 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1325229 + ... + 1424618.

It is an arithmetic number, because the mean of its divisors is an integer number (13669494408).

Almost surely, 2^136653646665 is an apocalyptic number.

136653646665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136653646665 is a deficient number, since it is larger than the sum of its proper divisors (82058263863).

136653646665 is a wasteful number, since it uses less digits than its factorization.

136653646665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2753168.

The product of its digits is 41990400, while the sum is 57.

The spelling of 136653646665 in words is "one hundred thirty-six billion, six hundred fifty-three million, six hundred forty-six thousand, six hundred sixty-five".