15949340604 has 36 divisors (see below), whose sum is σ = 40430631696. Its totient is φ = 5301381888.

The previous prime is 15949340557. The next prime is 15949340611. The reversal of 15949340604 is 40604394951.

15949340604 is a `hidden beast` number, since 1 + 5 + 9 + 4 + 9 + 34 + 0 + 604 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 15949340604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 614824 + ... + 640239.

Almost surely, 2^15949340604 is an apocalyptic number.

It is an amenable number.

15949340604 is an abundant number, since it is smaller than the sum of its proper divisors (24481291092).

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

15949340604 is a wasteful number, since it uses less digits than its factorization.

15949340604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255426 (or 1255421 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 15949340604 in words is "fifteen billion, nine hundred forty-nine million, three hundred forty thousand, six hundred four".