206246772736 has 57 divisors (see below), whose sum is σ = 412958325559. Its totient is φ = 103007125504.

The previous prime is 206246772707. The next prime is 206246772763. The reversal of 206246772736 is 637277642602.

The square root of 206246772736 is 454144.

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

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 232521285 + ... + 232522171.

Almost surely, 2^206246772736 is an apocalyptic number.

206246772736 is the 454144-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206246772736

206246772736 is an abundant number, since it is smaller than the sum of its proper divisors (206711552823).

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

206246772736 is an frugal number, since it uses more digits than its factorization.

206246772736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810 (or 889 counting only the distinct ones).

The product of its (nonzero) digits is 7112448, while the sum is 52.

The spelling of 206246772736 in words is "two hundred six billion, two hundred forty-six million, seven hundred seventy-two thousand, seven hundred thirty-six".