164989507922 has 6 divisors (see below), whose sum is σ = 247485123543. Its totient is φ = 82494466742.

The previous prime is 164989507919. The next prime is 164989507931. The reversal of 164989507922 is 229705989461.

It can be written as a sum of positive squares in only one way, i.e., 82494753961 + 82494753961 = 287219^2 + 287219^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=287219.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 430829 + ... + 718047.

Almost surely, 2^164989507922 is an apocalyptic number.

164989507922 is a deficient number, since it is larger than the sum of its proper divisors (82495615621).

164989507922 is an frugal number, since it uses more digits than its factorization.

164989507922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574440 (or 287221 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 62.

The spelling of 164989507922 in words is "one hundred sixty-four billion, nine hundred eighty-nine million, five hundred seven thousand, nine hundred twenty-two".