15712666972 has 12 divisors (see below), whose sum is σ = 27749435560. Its totient is φ = 7784256816.

The previous prime is 15712666933. The next prime is 15712666979. The reversal of 15712666972 is 27966621751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15712666979) 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, 18018678 + ... + 18019549.

Almost surely, 2^15712666972 is an apocalyptic number.

It is an amenable number.

15712666972 is a deficient number, since it is larger than the sum of its proper divisors (12036768588).

15712666972 is a wasteful number, since it uses less digits than its factorization.

15712666972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36038340 (or 36038338 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 52.

The spelling of 15712666972 in words is "fifteen billion, seven hundred twelve million, six hundred sixty-six thousand, nine hundred seventy-two".