15960492081 has 24 divisors (see below), whose sum is σ = 24337040000. Its totient is φ = 10051389792.

The previous prime is 15960492061. The next prime is 15960492083. The reversal of 15960492081 is 18029406951.

15960492081 is a `hidden beast` number, since 15 + 9 + 604 + 9 + 20 + 8 + 1 = 666.

15960492081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-15960492081 is a prime.

It is a super-2 number, since 2×15960492081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15960492083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74041 + ... + 193398.

Almost surely, 2^15960492081 is an apocalyptic number.

It is an amenable number.

15960492081 is a deficient number, since it is larger than the sum of its proper divisors (8376547919).

15960492081 is a wasteful number, since it uses less digits than its factorization.

15960492081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267813 (or 267810 counting only the distinct ones).

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

The spelling of 15960492081 in words is "fifteen billion, nine hundred sixty million, four hundred ninety-two thousand, eighty-one".