13155964887 has 8 divisors (see below), whose sum is σ = 18890616304. Its totient is φ = 8095978368.

The previous prime is 13155964859. The next prime is 13155964889. The reversal of 13155964887 is 78846955131.

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

It is not a de Polignac number, because 13155964887 - 2⁶ = 13155964823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13155964889) 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, 168666178 + ... + 168666255.

It is an arithmetic number, because the mean of its divisors is an integer number (2361327038).

Almost surely, 2^13155964887 is an apocalyptic number.

13155964887 is a deficient number, since it is larger than the sum of its proper divisors (5734651417).

13155964887 is a wasteful number, since it uses less digits than its factorization.

13155964887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337332449.

The product of its digits is 7257600, while the sum is 57.

The spelling of 13155964887 in words is "thirteen billion, one hundred fifty-five million, nine hundred sixty-four thousand, eight hundred eighty-seven".