13158329646 has 48 divisors (see below), whose sum is σ = 33058956672. Its totient is φ = 3417746640.

The previous prime is 13158329633. The next prime is 13158329659. The reversal of 13158329646 is 64692385131.

It is an interprime number because it is at equal distance from previous prime (13158329633) and next prime (13158329659).

It is a junction number, because it is equal to n+sod(n) for n = 13158329595 and 13158329604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1289520 + ... + 1299683.

It is an arithmetic number, because the mean of its divisors is an integer number (688728264).

Almost surely, 2^13158329646 is an apocalyptic number.

13158329646 is an abundant number, since it is smaller than the sum of its proper divisors (19900627026).

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

13158329646 is a wasteful number, since it uses less digits than its factorization.

13158329646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2589237 (or 2589226 counting only the distinct ones).

The product of its digits is 933120, while the sum is 48.

The spelling of 13158329646 in words is "thirteen billion, one hundred fifty-eight million, three hundred twenty-nine thousand, six hundred forty-six".