13636165640 has 16 divisors (see below), whose sum is σ = 30681372780. Its totient is φ = 5454466240.

The previous prime is 13636165607. The next prime is 13636165657. The reversal of 13636165640 is 4656163631.

It can be written as a sum of positive squares in 2 ways, for example, as 12524743396 + 1111422244 = 111914^2 + 33338^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170452031 + ... + 170452110.

Almost surely, 2^13636165640 is an apocalyptic number.

13636165640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13636165640 is an abundant number, since it is smaller than the sum of its proper divisors (17045207140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13636165640 is a wasteful number, since it uses less digits than its factorization.

13636165640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340904152 (or 340904148 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 13636165640 in words is "thirteen billion, six hundred thirty-six million, one hundred sixty-five thousand, six hundred forty".