15916085961 has 8 divisors (see below), whose sum is σ = 21222441600. Its totient is φ = 10610227152.

The previous prime is 15916085959. The next prime is 15916085987. The reversal of 15916085961 is 16958061951.

15916085961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 15916085961 - 2¹ = 15916085959 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15916085761) 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 7 ways as a sum of consecutive naturals, for example, 41610 + ... + 183203.

It is an arithmetic number, because the mean of its divisors is an integer number (2652805200).

Almost surely, 2^15916085961 is an apocalyptic number.

It is an amenable number.

15916085961 is a deficient number, since it is larger than the sum of its proper divisors (5306355639).

15916085961 is a wasteful number, since it uses less digits than its factorization.

15916085961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248415.

The product of its (nonzero) digits is 583200, while the sum is 51.

The spelling of 15916085961 in words is "fifteen billion, nine hundred sixteen million, eighty-five thousand, nine hundred sixty-one".