13506640345 has 32 divisors (see below), whose sum is σ = 18126218880. Its totient is φ = 9576752640.

The previous prime is 13506640337. The next prime is 13506640379. The reversal of 13506640345 is 54304660531.

It is not a de Polignac number, because 13506640345 - 2³ = 13506640337 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 31 ways as a sum of consecutive naturals, for example, 1340667 + ... + 1350703.

It is an arithmetic number, because the mean of its divisors is an integer number (566444340).

Almost surely, 2^13506640345 is an apocalyptic number.

It is an amenable number.

13506640345 is a deficient number, since it is larger than the sum of its proper divisors (4619578535).

13506640345 is a wasteful number, since it uses less digits than its factorization.

13506640345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10665.

The product of its (nonzero) digits is 129600, while the sum is 37.

The spelling of 13506640345 in words is "thirteen billion, five hundred six million, six hundred forty thousand, three hundred forty-five".