206256963320 has 32 divisors (see below), whose sum is σ = 480080865600. Its totient is φ = 79657861248.

The previous prime is 206256963307. The next prime is 206256963347. The reversal of 206256963320 is 23369652602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88902704 + ... + 88905023.

It is an arithmetic number, because the mean of its divisors is an integer number (15002527050).

Almost surely, 2^206256963320 is an apocalyptic number.

206256963320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206256963320 is an abundant number, since it is smaller than the sum of its proper divisors (273823902280).

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

206256963320 is a wasteful number, since it uses less digits than its factorization.

206256963320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177807767 (or 177807763 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 44.

The spelling of 206256963320 in words is "two hundred six billion, two hundred fifty-six million, nine hundred sixty-three thousand, three hundred twenty".