204152958866 has 4 divisors (see below), whose sum is σ = 306229438302. Its totient is φ = 102076479432.

The previous prime is 204152958859. The next prime is 204152958899. The reversal of 204152958866 is 668859251402.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 129981159841 + 74171799025 = 360529^2 + 272345^2 .

It is a super-2 number, since 2×204152958866² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51038239715 + ... + 51038239718.

Almost surely, 2^204152958866 is an apocalyptic number.

204152958866 is a deficient number, since it is larger than the sum of its proper divisors (102076479436).

204152958866 is a wasteful number, since it uses less digits than its factorization.

204152958866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102076479435.

The product of its (nonzero) digits is 8294400, while the sum is 56.

The spelling of 204152958866 in words is "two hundred four billion, one hundred fifty-two million, nine hundred fifty-eight thousand, eight hundred sixty-six".