16601615983 has 8 divisors (see below), whose sum is σ = 17136359856. Its totient is φ = 16073054400.

The previous prime is 16601615963. The next prime is 16601616007. The reversal of 16601615983 is 38951610661.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16601615983 is a prime.

It is a super-2 number, since 2×16601615983² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16601615903) 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, 1540116 + ... + 1550857.

It is an arithmetic number, because the mean of its divisors is an integer number (2142044982).

Almost surely, 2^16601615983 is an apocalyptic number.

16601615983 is a deficient number, since it is larger than the sum of its proper divisors (534743873).

16601615983 is a wasteful number, since it uses less digits than its factorization.

16601615983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3091145.

The product of its (nonzero) digits is 233280, while the sum is 46.

The spelling of 16601615983 in words is "sixteen billion, six hundred one million, six hundred fifteen thousand, nine hundred eighty-three".