13215164919 has 16 divisors (see below), whose sum is σ = 19380923904. Its totient is φ = 8009188440.

The previous prime is 13215164839. The next prime is 13215164927. The reversal of 13215164919 is 91946151231.

It is not a de Polignac number, because 13215164919 - 2¹¹ = 13215162871 is a prime.

It is a super-2 number, since 2×13215164919² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13215164519) 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, 1650799 + ... + 1658784.

It is an arithmetic number, because the mean of its divisors is an integer number (1211307744).

Almost surely, 2^13215164919 is an apocalyptic number.

13215164919 is a deficient number, since it is larger than the sum of its proper divisors (6165758985).

13215164919 is an equidigital number, since it uses as much as digits as its factorization.

13215164919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3309619 (or 3309597 counting only the distinct ones).

The product of its digits is 58320, while the sum is 42.

The spelling of 13215164919 in words is "thirteen billion, two hundred fifteen million, one hundred sixty-four thousand, nine hundred nineteen".