204462106820 has 12 divisors (see below), whose sum is σ = 429370424364. Its totient is φ = 81784842720.

The previous prime is 204462106789. The next prime is 204462106847. The reversal of 204462106820 is 28601264402.

It can be written as a sum of positive squares in 2 ways, for example, as 58611441604 + 145850665216 = 242098^2 + 381904^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5111552651 + ... + 5111552690.

It is an arithmetic number, because the mean of its divisors is an integer number (35780868697).

Almost surely, 2^204462106820 is an apocalyptic number.

204462106820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204462106820 is an abundant number, since it is smaller than the sum of its proper divisors (224908317544).

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

204462106820 is a wasteful number, since it uses less digits than its factorization.

204462106820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10223105350 (or 10223105348 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The spelling of 204462106820 in words is "two hundred four billion, four hundred sixty-two million, one hundred six thousand, eight hundred twenty".