164969198208 has 80 divisors (see below), whose sum is σ = 490945691610. Its totient is φ = 54989729280.

The previous prime is 164969198197. The next prime is 164969198237. The reversal of 164969198208 is 802891969461.

It can be written as a sum of positive squares in only one way, i.e., 143374307904 + 21594890304 = 378648^2 + 146952^2 .

It is a super-2 number, since 2×164969198208² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7945323 + ... + 7966058.

Almost surely, 2^164969198208 is an apocalyptic number.

164969198208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

164969198208 is an abundant number, since it is smaller than the sum of its proper divisors (325976493402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164969198208 is an equidigital number, since it uses as much as digits as its factorization.

164969198208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15911407 (or 15911386 counting only the distinct ones).

The product of its (nonzero) digits is 13436928, while the sum is 63.

The spelling of 164969198208 in words is "one hundred sixty-four billion, nine hundred sixty-nine million, one hundred ninety-eight thousand, two hundred eight".