13364640136 has 16 divisors (see below), whose sum is σ = 25102748700. Its totient is φ = 6670573824.

The previous prime is 13364640127. The next prime is 13364640137. The reversal of 13364640136 is 63104646331.

It can be written as a sum of positive squares in 2 ways, for example, as 11557540036 + 1807100100 = 107506^2 + 42510^2 .

It is a super-2 number, since 2×13364640136² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13364640095 and 13364640104.

It is not an unprimeable number, because it can be changed into a prime (13364640137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1463445 + ... + 1472548.

Almost surely, 2^13364640136 is an apocalyptic number.

It is an amenable number.

13364640136 is a deficient number, since it is larger than the sum of its proper divisors (11738108564).

13364640136 is a wasteful number, since it uses less digits than its factorization.

13364640136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2936568 (or 2936564 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 37.

The spelling of 13364640136 in words is "thirteen billion, three hundred sixty-four million, six hundred forty thousand, one hundred thirty-six".