202106661210 has 96 divisors (see below), whose sum is σ = 560073076992. Its totient is φ = 50388825600.

The previous prime is 202106661199. The next prime is 202106661257. The reversal of 202106661210 is 12166601202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 206374 + ... + 668433.

It is an arithmetic number, because the mean of its divisors is an integer number (5834094552).

Almost surely, 2^202106661210 is an apocalyptic number.

202106661210 is an abundant number, since it is smaller than the sum of its proper divisors (357966415782).

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

202106661210 is a wasteful number, since it uses less digits than its factorization.

202106661210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874988 (or 874985 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The spelling of 202106661210 in words is "two hundred two billion, one hundred six million, six hundred sixty-one thousand, two hundred ten".