16169041979 has 2 divisors, whose sum is σ = 16169041980. Its totient is φ = 16169041978.

The previous prime is 16169041963. The next prime is 16169041991. The reversal of 16169041979 is 97914096161.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16169041979 - 2⁴ = 16169041963 is a prime.

It is a super-2 number, since 2×16169041979² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16169041979.

It is not a weakly prime, because it can be changed into another prime (16169041909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8084520989 + 8084520990.

It is an arithmetic number, because the mean of its divisors is an integer number (8084520990).

Almost surely, 2^16169041979 is an apocalyptic number.

16169041979 is a deficient number, since it is larger than the sum of its proper divisors (1).

16169041979 is an equidigital number, since it uses as much as digits as its factorization.

16169041979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 734832, while the sum is 53.

The spelling of 16169041979 in words is "sixteen billion, one hundred sixty-nine million, forty-one thousand, nine hundred seventy-nine".