204202422456 has 32 divisors (see below), whose sum is σ = 518875011600. Its totient is φ = 66951613440.

The previous prime is 204202422443. The next prime is 204202422491. The reversal of 204202422456 is 654224202402.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69739801 + ... + 69742728.

Almost surely, 2^204202422456 is an apocalyptic number.

It is an amenable number.

204202422456 is an abundant number, since it is smaller than the sum of its proper divisors (314672589144).

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

204202422456 is a wasteful number, since it uses less digits than its factorization.

204202422456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139482599 (or 139482595 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 33.

Adding to 204202422456 its reverse (654224202402), we get a palindrome (858426624858).

The spelling of 204202422456 in words is "two hundred four billion, two hundred two million, four hundred twenty-two thousand, four hundred fifty-six".