204306162655 has 32 divisors (see below), whose sum is σ = 284844625920. Its totient is φ = 137769966720.

The previous prime is 204306162653. The next prime is 204306162679. The reversal of 204306162655 is 556261603402.

It is a happy number.

It is not a de Polignac number, because 204306162655 - 2¹ = 204306162653 is a prime.

It is a super-2 number, since 2×204306162655² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204306162653) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16303002 + ... + 16315528.

It is an arithmetic number, because the mean of its divisors is an integer number (8901394560).

Almost surely, 2^204306162655 is an apocalyptic number.

204306162655 is a deficient number, since it is larger than the sum of its proper divisors (80538463265).

204306162655 is a wasteful number, since it uses less digits than its factorization.

204306162655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20239.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 204306162655 in words is "two hundred four billion, three hundred six million, one hundred sixty-two thousand, six hundred fifty-five".