13564166145 has 32 divisors (see below), whose sum is σ = 22321309440. Its totient is φ = 7028570880.

The previous prime is 13564166137. The next prime is 13564166149. The reversal of 13564166145 is 54166146531.

It is not a de Polignac number, because 13564166145 - 2³ = 13564166137 is a prime.

It is a super-2 number, since 2×13564166145² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13564166097 and 13564166106.

It is not an unprimeable number, because it can be changed into a prime (13564166149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 376260 + ... + 410730.

It is an arithmetic number, because the mean of its divisors is an integer number (697540920).

Almost surely, 2^13564166145 is an apocalyptic number.

13564166145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13564166145 is a deficient number, since it is larger than the sum of its proper divisors (8757143295).

13564166145 is a wasteful number, since it uses less digits than its factorization.

13564166145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35225.

The product of its digits is 259200, while the sum is 42.

The spelling of 13564166145 in words is "thirteen billion, five hundred sixty-four million, one hundred sixty-six thousand, one hundred forty-five".