204243640062 has 64 divisors (see below), whose sum is σ = 514042619904. Its totient is φ = 52554486240.

The previous prime is 204243640019. The next prime is 204243640087. The reversal of 204243640062 is 260046342402.

It is a super-2 number, since 2×204243640062² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2016388 + ... + 2115255.

It is an arithmetic number, because the mean of its divisors is an integer number (8031915936).

Almost surely, 2^204243640062 is an apocalyptic number.

204243640062 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

204243640062 is an abundant number, since it is smaller than the sum of its proper divisors (309798979842).

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

204243640062 is a wasteful number, since it uses less digits than its factorization.

204243640062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4131773.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 204243640062 its reverse (260046342402), we get a palindrome (464289982464).

The spelling of 204243640062 in words is "two hundred four billion, two hundred forty-three million, six hundred forty thousand, sixty-two".