164121917170 has 8 divisors (see below), whose sum is σ = 295419450924. Its totient is φ = 65648766864.

The previous prime is 164121917161. The next prime is 164121917207. The reversal of 164121917170 is 71719121461.

It can be written as a sum of positive squares in 2 ways, for example, as 131335934409 + 32785982761 = 362403^2 + 181069^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8206095849 + ... + 8206095868.

Almost surely, 2^164121917170 is an apocalyptic number.

164121917170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164121917170 is a deficient number, since it is larger than the sum of its proper divisors (131297533754).

164121917170 is a wasteful number, since it uses less digits than its factorization.

164121917170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16412191724.

The product of its (nonzero) digits is 21168, while the sum is 40.

The spelling of 164121917170 in words is "one hundred sixty-four billion, one hundred twenty-one million, nine hundred seventeen thousand, one hundred seventy".