15980202712 has 8 divisors (see below), whose sum is σ = 29962880100. Its totient is φ = 7990101352.

The previous prime is 15980202677. The next prime is 15980202731. The reversal of 15980202712 is 21720208951.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×15980202712² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 998762662 + ... + 998762677.

Almost surely, 2^15980202712 is an apocalyptic number.

It is an amenable number.

15980202712 is a deficient number, since it is larger than the sum of its proper divisors (13982677388).

15980202712 is a wasteful number, since it uses less digits than its factorization.

15980202712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997525345 (or 1997525341 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 37.

The spelling of 15980202712 in words is "fifteen billion, nine hundred eighty million, two hundred two thousand, seven hundred twelve".