13640760320 has 88 divisors (see below), whose sum is σ = 35696699568. Its totient is φ = 4960256000.

The previous prime is 13640760253. The next prime is 13640760347. The reversal of 13640760320 is 2306704631.

It is a tau number, because it is divible by the number of its divisors (88).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64781 + ... + 177420.

Almost surely, 2^13640760320 is an apocalyptic number.

13640760320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13640760320 is an abundant number, since it is smaller than the sum of its proper divisors (22055939248).

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

13640760320 is a wasteful number, since it uses less digits than its factorization.

13640760320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242237 (or 242219 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 32.

The spelling of 13640760320 in words is "thirteen billion, six hundred forty million, seven hundred sixty thousand, three hundred twenty".