206551264 has 24 divisors (see below), whose sum is σ = 419767488. Its totient is φ = 99943680.

The previous prime is 206551259. The next prime is 206551313. The reversal of 206551264 is 462155602.

206551264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

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, 103117 + ... + 105100.

It is an arithmetic number, because the mean of its divisors is an integer number (17490312).

Almost surely, 2^206551264 is an apocalyptic number.

It is an amenable number.

206551264 is an abundant number, since it is smaller than the sum of its proper divisors (213216224).

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

206551264 is a wasteful number, since it uses less digits than its factorization.

206551264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208258 (or 208250 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 206551264 is about 14371.8914551982. The cubic root of 206551264 is about 591.1204066771.

The spelling of 206551264 in words is "two hundred six million, five hundred fifty-one thousand, two hundred sixty-four".