206855814264 has 48 divisors (see below), whose sum is σ = 568426109160. Its totient is φ = 62683579200.

The previous prime is 206855814211. The next prime is 206855814281. The reversal of 206855814264 is 462418558602.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35612767 + ... + 35618574.

Almost surely, 2^206855814264 is an apocalyptic number.

206855814264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

206855814264 is an abundant number, since it is smaller than the sum of its proper divisors (361570294896).

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

206855814264 is a wasteful number, since it uses less digits than its factorization.

206855814264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71231372 (or 71231357 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 51.

The spelling of 206855814264 in words is "two hundred six billion, eight hundred fifty-five million, eight hundred fourteen thousand, two hundred sixty-four".