164517903274 has 16 divisors (see below), whose sum is σ = 262117426248. Its totient is φ = 77175956992.

The previous prime is 164517903269. The next prime is 164517903283. The reversal of 164517903274 is 472309715461.

It can be written as a sum of positive squares in 4 ways, for example, as 139155111225 + 25362792049 = 373035^2 + 159257^2 .

It is a super-2 number, since 2×164517903274² (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 7 ways as a sum of consecutive naturals, for example, 7621339 + ... + 7642894.

Almost surely, 2^164517903274 is an apocalyptic number.

164517903274 is a deficient number, since it is larger than the sum of its proper divisors (97599522974).

164517903274 is a wasteful number, since it uses less digits than its factorization.

164517903274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15264569.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 164517903274 in words is "one hundred sixty-four billion, five hundred seventeen million, nine hundred three thousand, two hundred seventy-four".