206151936724 has 6 divisors (see below), whose sum is σ = 360765889274. Its totient is φ = 103075968360.

The previous prime is 206151936673. The next prime is 206151936733. The reversal of 206151936724 is 427639151602.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 203565197124 + 2586739600 = 451182^2 + 50860^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25768992087 + ... + 25768992094.

Almost surely, 2^206151936724 is an apocalyptic number.

It is an amenable number.

206151936724 is a deficient number, since it is larger than the sum of its proper divisors (154613952550).

206151936724 is a wasteful number, since it uses less digits than its factorization.

206151936724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51537984185 (or 51537984183 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 206151936724 in words is "two hundred six billion, one hundred fifty-one million, nine hundred thirty-six thousand, seven hundred twenty-four".