13164430271523 has 16 divisors (see below), whose sum is σ = 17714153276160. Its totient is φ = 8695502028576.

The previous prime is 13164430271521. The next prime is 13164430271561. The reversal of 13164430271523 is 32517203446131.

It is a Cunningham number, because it is equal to 3628282²-1.

It is not a de Polignac number, because 13164430271523 - 2¹ = 13164430271521 is a prime.

It is a super-2 number, since 2×13164430271523² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13164430271521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10280136 + ... + 11489562.

It is an arithmetic number, because the mean of its divisors is an integer number (1107134579760).

Almost surely, 2^{13164430271523} is an apocalyptic number.

13164430271523 is a deficient number, since it is larger than the sum of its proper divisors (4549723004637).

13164430271523 is a wasteful number, since it uses less digits than its factorization.

13164430271523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242826.

The product of its (nonzero) digits is 362880, while the sum is 42.

The spelling of 13164430271523 in words is "thirteen trillion, one hundred sixty-four billion, four hundred thirty million, two hundred seventy-one thousand, five hundred twenty-three".