206638652934 has 96 divisors (see below), whose sum is σ = 557392803840. Its totient is φ = 56472658704.

The previous prime is 206638652917. The next prime is 206638652951. The reversal of 206638652934 is 439256836602.

It is a happy number.

206638652934 is a `hidden beast` number, since 2 + 0 + 6 + 6 + 3 + 86 + 529 + 34 = 666.

It is an interprime number because it is at equal distance from previous prime (206638652917) and next prime (206638652951).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1636854 + ... + 1758569.

It is an arithmetic number, because the mean of its divisors is an integer number (5806175040).

Almost surely, 2^206638652934 is an apocalyptic number.

206638652934 is an abundant number, since it is smaller than the sum of its proper divisors (350754150906).

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

206638652934 is a wasteful number, since it uses less digits than its factorization.

206638652934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3395471 (or 3395458 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 54.

The spelling of 206638652934 in words is "two hundred six billion, six hundred thirty-eight million, six hundred fifty-two thousand, nine hundred thirty-four".