15680902149 has 48 divisors (see below), whose sum is σ = 25325936064. Its totient is φ = 9267148800.

The previous prime is 15680902147. The next prime is 15680902229. The reversal of 15680902149 is 94120908651.

It is not a de Polignac number, because 15680902149 - 2¹ = 15680902147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15680902147) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2879269 + ... + 2884709.

It is an arithmetic number, because the mean of its divisors is an integer number (527623668).

Almost surely, 2^15680902149 is an apocalyptic number.

It is an amenable number.

15680902149 is a deficient number, since it is larger than the sum of its proper divisors (9645033915).

15680902149 is a wasteful number, since it uses less digits than its factorization.

15680902149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6178 (or 6175 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The spelling of 15680902149 in words is "fifteen billion, six hundred eighty million, nine hundred two thousand, one hundred forty-nine".