179790945169 has 16 divisors (see below), whose sum is σ = 196582417920. Its totient is φ = 163074384000.

The previous prime is 179790945097. The next prime is 179790945197. The reversal of 179790945169 is 961549097971.

It is not a de Polignac number, because 179790945169 - 2¹³ = 179790936977 is a prime.

It is a super-2 number, since 2×179790945169² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (179790945469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8939677 + ... + 8959765.

It is an arithmetic number, because the mean of its divisors is an integer number (12286401120).

Almost surely, 2^179790945169 is an apocalyptic number.

It is an amenable number.

179790945169 is a deficient number, since it is larger than the sum of its proper divisors (16791472751).

179790945169 is a wasteful number, since it uses less digits than its factorization.

179790945169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21912.

The product of its (nonzero) digits is 38578680, while the sum is 67.

The spelling of 179790945169 in words is "one hundred seventy-nine billion, seven hundred ninety million, nine hundred forty-five thousand, one hundred sixty-nine".