20066170 has 16 divisors (see below), whose sum is σ = 36352008. Its totient is φ = 7974720.

The previous prime is 20066161. The next prime is 20066183. The reversal of 20066170 is 7166002.

It can be written as a sum of positive squares in 4 ways, for example, as 16329681 + 3736489 = 4041^2 + 1933^2 .

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, 4821 + ... + 7960.

Almost surely, 2^20066170 is an apocalyptic number.

20066170 is a deficient number, since it is larger than the sum of its proper divisors (16285838).

20066170 is a wasteful number, since it uses less digits than its factorization.

20066170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12945.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 20066170 is about 4479.5278769085. The cubic root of 20066170 is about 271.7407871491.

The spelling of 20066170 in words is "twenty million, sixty-six thousand, one hundred seventy".