13164921044 has 12 divisors (see below), whose sum is σ = 25133031168. Its totient is φ = 5984055000.

The previous prime is 13164921043. The next prime is 13164921059. The reversal of 13164921044 is 44012946131.

It is a junction number, because it is equal to n+sod(n) for n = 13164920995 and 13164921013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13164921043) 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, 149601332 + ... + 149601419.

It is an arithmetic number, because the mean of its divisors is an integer number (2094419264).

Almost surely, 2^13164921044 is an apocalyptic number.

It is an amenable number.

13164921044 is a deficient number, since it is larger than the sum of its proper divisors (11968110124).

13164921044 is a wasteful number, since it uses less digits than its factorization.

13164921044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299202766 (or 299202764 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 13164921044 in words is "thirteen billion, one hundred sixty-four million, nine hundred twenty-one thousand, forty-four".