13345845815 has 16 divisors (see below), whose sum is σ = 16132586400. Its totient is φ = 10598386560.

The previous prime is 13345845761. The next prime is 13345845833. The reversal of 13345845815 is 51854854331.

It is not a de Polignac number, because 13345845815 - 2²⁰ = 13344797239 is a prime.

It is a super-2 number, since 2×13345845815² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13345845815.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1433957 + ... + 1443233.

It is an arithmetic number, because the mean of its divisors is an integer number (1008286650).

Almost surely, 2^13345845815 is an apocalyptic number.

13345845815 is a deficient number, since it is larger than the sum of its proper divisors (2786740585).

13345845815 is a wasteful number, since it uses less digits than its factorization.

13345845815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11362.

The product of its digits is 1152000, while the sum is 47.

The spelling of 13345845815 in words is "thirteen billion, three hundred forty-five million, eight hundred forty-five thousand, eight hundred fifteen".