205566650022 has 64 divisors (see below), whose sum is σ = 427075383744. Its totient is φ = 65910620160.

The previous prime is 205566649999. The next prime is 205566650117. The reversal of 205566650022 is 220056665502.

It is a congruent 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, 9948822 + ... + 9969462.

It is an arithmetic number, because the mean of its divisors is an integer number (6673052871).

Almost surely, 2^205566650022 is an apocalyptic number.

205566650022 is an abundant number, since it is smaller than the sum of its proper divisors (221508733722).

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

205566650022 is a wasteful number, since it uses less digits than its factorization.

205566650022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21193.

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 205566650022 in words is "two hundred five billion, five hundred sixty-six million, six hundred fifty thousand, twenty-two".