200621715106668 has 48 divisors (see below), whose sum is σ = 484379808192000. Its totient is φ = 64551842195008.

The previous prime is 200621715106567. The next prime is 200621715106711. The reversal of 200621715106668 is 866601517126002.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 200621715106668.

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 15 ways as a sum of consecutive naturals, for example, 70323108 + ... + 73120331.

It is an arithmetic number, because the mean of its divisors is an integer number (10091246004000).

Almost surely, 2^{200621715106668} is an apocalyptic number.

It is an amenable number.

200621715106668 is an abundant number, since it is smaller than the sum of its proper divisors (283758093085332).

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

200621715106668 is a wasteful number, since it uses less digits than its factorization.

200621715106668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143447494 (or 143447492 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 200621715106668 in words is "two hundred trillion, six hundred twenty-one billion, seven hundred fifteen million, one hundred six thousand, six hundred sixty-eight".