16616179979 has 8 divisors (see below), whose sum is σ = 19008311520. Its totient is φ = 14228646336.

The previous prime is 16616179949. The next prime is 16616179997. The reversal of 16616179979 is 97997161661.

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 16616179979 - 2¹² = 16616175883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16616179949) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 1141724 + ... + 1156185.

It is an arithmetic number, because the mean of its divisors is an integer number (2376038940).

Almost surely, 2^16616179979 is an apocalyptic number.

16616179979 is a deficient number, since it is larger than the sum of its proper divisors (2392131541).

16616179979 is a wasteful number, since it uses less digits than its factorization.

16616179979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2298949.

The product of its digits is 7715736, while the sum is 62.

The spelling of 16616179979 in words is "sixteen billion, six hundred sixteen million, one hundred seventy-nine thousand, nine hundred seventy-nine".