210166902345 has 32 divisors (see below), whose sum is σ = 347692391424. Its totient is φ = 108292608000.

The previous prime is 210166902307. The next prime is 210166902401. The reversal of 210166902345 is 543209661012.

It is not a de Polignac number, because 210166902345 - 2¹⁷ = 210166771273 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96552 + ... + 655481.

It is an arithmetic number, because the mean of its divisors is an integer number (10865387232).

Almost surely, 2^210166902345 is an apocalyptic number.

It is an amenable number.

210166902345 is a deficient number, since it is larger than the sum of its proper divisors (137525489079).

210166902345 is a wasteful number, since it uses less digits than its factorization.

210166902345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752673.

The product of its (nonzero) digits is 77760, while the sum is 39.

The spelling of 210166902345 in words is "two hundred ten billion, one hundred sixty-six million, nine hundred two thousand, three hundred forty-five".