16045678961 has 8 divisors (see below), whose sum is σ = 18189433920. Its totient is φ = 14031848592.

The previous prime is 16045678951. The next prime is 16045679017. The reversal of 16045678961 is 16987654061.

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

It is a cyclic number.

It is not a de Polignac number, because 16045678961 - 2¹⁸ = 16045416817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16045678931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32480885 + ... + 32481378.

It is an arithmetic number, because the mean of its divisors is an integer number (2273679240).

Almost surely, 2^16045678961 is an apocalyptic number.

It is an amenable number.

16045678961 is a deficient number, since it is larger than the sum of its proper divisors (2143754959).

16045678961 is a wasteful number, since it uses less digits than its factorization.

16045678961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64962295.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 16045678961 in words is "sixteen billion, forty-five million, six hundred seventy-eight thousand, nine hundred sixty-one".