204245023663 has 8 divisors (see below), whose sum is σ = 212349397680. Its totient is φ = 196289353920.

The previous prime is 204245023649. The next prime is 204245023667. The reversal of 204245023663 is 366320542402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204245023663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204245023667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37173268 + ... + 37178761.

It is an arithmetic number, because the mean of its divisors is an integer number (26543674710).

Almost surely, 2^204245023663 is an apocalyptic number.

204245023663 is a deficient number, since it is larger than the sum of its proper divisors (8104374017).

204245023663 is an equidigital number, since it uses as much as digits as its factorization.

204245023663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74352137.

The product of its (nonzero) digits is 207360, while the sum is 37.

The spelling of 204245023663 in words is "two hundred four billion, two hundred forty-five million, twenty-three thousand, six hundred sixty-three".