166670200220 has 12 divisors (see below), whose sum is σ = 350007420504. Its totient is φ = 66668080080.

The previous prime is 166670200127. The next prime is 166670200273. The reversal of 166670200220 is 22002076661.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 4166754986 + ... + 4166755025.

It is an arithmetic number, because the mean of its divisors is an integer number (29167285042).

Almost surely, 2^166670200220 is an apocalyptic number.

166670200220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166670200220 is an abundant number, since it is smaller than the sum of its proper divisors (183337220284).

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

166670200220 is a wasteful number, since it uses less digits than its factorization.

166670200220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8333510020 (or 8333510018 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

Adding to 166670200220 its reverse (22002076661), we get a palindrome (188672276881).

The spelling of 166670200220 in words is "one hundred sixty-six billion, six hundred seventy million, two hundred thousand, two hundred twenty".