206157068 has 96 divisors (see below), whose sum is σ = 433520640. Its totient is φ = 84913920.

The previous prime is 206157053. The next prime is 206157097. The reversal of 206157068 is 860751602.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1623221 + ... + 1623347.

It is an arithmetic number, because the mean of its divisors is an integer number (4515840).

Almost surely, 2^206157068 is an apocalyptic number.

It is an amenable number.

206157068 is an abundant number, since it is smaller than the sum of its proper divisors (227363572).

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

206157068 is a wasteful number, since it uses less digits than its factorization.

206157068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 206157068 is about 14358.1707748585. The cubic root of 206157068 is about 590.7441228628.

The spelling of 206157068 in words is "two hundred six million, one hundred fifty-seven thousand, sixty-eight".