13164387181 has 8 divisors (see below), whose sum is σ = 14824412928. Its totient is φ = 11581572000.

The previous prime is 13164387179. The next prime is 13164387209. The reversal of 13164387181 is 18178346131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13164387181 - 2¹ = 13164387179 is a prime.

It is a super-2 number, since 2×13164387181² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13164387151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19302280 + ... + 19302961.

It is an arithmetic number, because the mean of its divisors is an integer number (1853051616).

Almost surely, 2^13164387181 is an apocalyptic number.

13164387181 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13164387181 is a deficient number, since it is larger than the sum of its proper divisors (1660025747).

13164387181 is a wasteful number, since it uses less digits than its factorization.

13164387181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38605283.

The product of its digits is 96768, while the sum is 43.

The spelling of 13164387181 in words is "thirteen billion, one hundred sixty-four million, three hundred eighty-seven thousand, one hundred eighty-one".