16522418398979 has 2 divisors, whose sum is σ = 16522418398980. Its totient is φ = 16522418398978.

The previous prime is 16522418398883. The next prime is 16522418399089. The reversal of 16522418398979 is 97989381422561.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16522418398979 is a prime.

It is not a weakly prime, because it can be changed into another prime (16522418392979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8261209199489 + 8261209199490.

It is an arithmetic number, because the mean of its divisors is an integer number (8261209199490).

Almost surely, 2^{16522418398979} is an apocalyptic number.

16522418398979 is a deficient number, since it is larger than the sum of its proper divisors (1).

16522418398979 is an equidigital number, since it uses as much as digits as its factorization.

16522418398979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 470292480, while the sum is 74.

The spelling of 16522418398979 in words is "sixteen trillion, five hundred twenty-two billion, four hundred eighteen million, three hundred ninety-eight thousand, nine hundred seventy-nine".