206526620304 has 45 divisors (see below), whose sum is σ = 578002956739. Its totient is φ = 68840388960.

The previous prime is 206526620273. The next prime is 206526620329. The reversal of 206526620304 is 403026625602.

The square root of 206526620304 is 454452.

It is a perfect power (a square), and thus also a powerful number.

206526620304 is a `hidden beast` number, since 2 + 0 + 6 + 5 + 26 + 620 + 3 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5434489 + ... + 5472359.

Almost surely, 2^206526620304 is an apocalyptic number.

206526620304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

206526620304 is the 454452-nd square number.

It is an amenable number.

206526620304 is an abundant number, since it is smaller than the sum of its proper divisors (371476336435).

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

206526620304 is an frugal number, since it uses more digits than its factorization.

206526620304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75756 (or 37876 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Multiplying 206526620304 by its sum of digits (36), we get a square (7434958330944 = 2726712²).

206526620304 divided by its sum of digits (36) gives a square (5736850564 = 75742²).

The spelling of 206526620304 in words is "two hundred six billion, five hundred twenty-six million, six hundred twenty thousand, three hundred four".