166853368670 has 32 divisors (see below), whose sum is σ = 315390362688. Its totient is φ = 63432914688.

The previous prime is 166853368621. The next prime is 166853368679. The reversal of 166853368670 is 76863358661.

It is a happy number.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166853368679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2274239 + ... + 2346458.

It is an arithmetic number, because the mean of its divisors is an integer number (9855948834).

Almost surely, 2^166853368670 is an apocalyptic number.

166853368670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166853368670 is a deficient number, since it is larger than the sum of its proper divisors (148536994018).

166853368670 is a wasteful number, since it uses less digits than its factorization.

166853368670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4620884.

The product of its (nonzero) digits is 26127360, while the sum is 59.

The spelling of 166853368670 in words is "one hundred sixty-six billion, eight hundred fifty-three million, three hundred sixty-eight thousand, six hundred seventy".