204631431616 has 28 divisors (see below), whose sum is σ = 406086274440. Its totient is φ = 102310480640.

The previous prime is 204631431611. The next prime is 204631431619. The reversal of 204631431616 is 616134136402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204631431611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1381770 + ... + 1522678.

It is an arithmetic number, because the mean of its divisors is an integer number (14503081230).

Almost surely, 2^204631431616 is an apocalyptic number.

It is an amenable number.

204631431616 is a deficient number, since it is larger than the sum of its proper divisors (201454842824).

204631431616 is a wasteful number, since it uses less digits than its factorization.

204631431616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163612 (or 163602 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

The spelling of 204631431616 in words is "two hundred four billion, six hundred thirty-one million, four hundred thirty-one thousand, six hundred sixteen".