13164239239638 has 48 divisors (see below), whose sum is σ = 27718487145648. Its totient is φ = 4166405505600.

The previous prime is 13164239239633. The next prime is 13164239239639. The reversal of 13164239239638 is 83693293246131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13164239239631) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21232893 + ... + 21844088.

It is an arithmetic number, because the mean of its divisors is an integer number (577468482201).

Almost surely, 2^{13164239239638} is an apocalyptic number.

13164239239638 is an abundant number, since it is smaller than the sum of its proper divisors (14554247906010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13164239239638 is a wasteful number, since it uses less digits than its factorization.

13164239239638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43077101 (or 43077070 counting only the distinct ones).

The product of its digits is 30233088, while the sum is 60.

The spelling of 13164239239638 in words is "thirteen trillion, one hundred sixty-four billion, two hundred thirty-nine million, two hundred thirty-nine thousand, six hundred thirty-eight".