13156154215 has 16 divisors (see below), whose sum is σ = 16476945408. Its totient is φ = 10065391776.

The previous prime is 13156154203. The next prime is 13156154303. The reversal of 13156154215 is 51245165131.

It is a cyclic number.

It is not a de Polignac number, because 13156154215 - 2¹¹ = 13156152167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 985012 + ... + 998278.

It is an arithmetic number, because the mean of its divisors is an integer number (1029809088).

Almost surely, 2^13156154215 is an apocalyptic number.

13156154215 is a deficient number, since it is larger than the sum of its proper divisors (3320791193).

13156154215 is a wasteful number, since it uses less digits than its factorization.

13156154215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21918.

The product of its digits is 18000, while the sum is 34.

The spelling of 13156154215 in words is "thirteen billion, one hundred fifty-six million, one hundred fifty-four thousand, two hundred fifteen".