15650115664 has 20 divisors (see below), whose sum is σ = 30333286720. Its totient is φ = 7822170720.

The previous prime is 15650115661. The next prime is 15650115667. The reversal of 15650115664 is 46651105651.

It is an interprime number because it is at equal distance from previous prime (15650115661) and next prime (15650115667).

It is a super-2 number, since 2×15650115664² (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 (15650115661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135384 + ... + 222775.

It is an arithmetic number, because the mean of its divisors is an integer number (1516664336).

Almost surely, 2^15650115664 is an apocalyptic number.

It is an amenable number.

15650115664 is a deficient number, since it is larger than the sum of its proper divisors (14683171056).

15650115664 is a wasteful number, since it uses less digits than its factorization.

15650115664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360898 (or 360892 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 40.

The spelling of 15650115664 in words is "fifteen billion, six hundred fifty million, one hundred fifteen thousand, six hundred sixty-four".