16137220979 has 8 divisors (see below), whose sum is σ = 17716371888. Its totient is φ = 14576758560.

The previous prime is 16137220937. The next prime is 16137220997. The reversal of 16137220979 is 97902273161.

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 16137220979 - 2¹² = 16137216883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16137220909) 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, 4670312 + ... + 4673765.

It is an arithmetic number, because the mean of its divisors is an integer number (2214546486).

Almost surely, 2^16137220979 is an apocalyptic number.

16137220979 is a deficient number, since it is larger than the sum of its proper divisors (1579150909).

16137220979 is a wasteful number, since it uses less digits than its factorization.

16137220979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9344245.

The product of its (nonzero) digits is 285768, while the sum is 47.

The spelling of 16137220979 in words is "sixteen billion, one hundred thirty-seven million, two hundred twenty thousand, nine hundred seventy-nine".