204451452465 has 32 divisors (see below), whose sum is σ = 364433368320. Its totient is φ = 97182226176.

The previous prime is 204451452437. The next prime is 204451452467. The reversal of 204451452465 is 564254154402.

It is a de Polignac number, because none of the positive numbers 2^k-204451452465 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204451452467) 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, 18071397 + ... + 18082706.

It is an arithmetic number, because the mean of its divisors is an integer number (11388542760).

Almost surely, 2^204451452465 is an apocalyptic number.

It is an amenable number.

204451452465 is a deficient number, since it is larger than the sum of its proper divisors (159981915855).

204451452465 is a wasteful number, since it uses less digits than its factorization.

204451452465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36154153.

The product of its (nonzero) digits is 768000, while the sum is 42.

The spelling of 204451452465 in words is "two hundred four billion, four hundred fifty-one million, four hundred fifty-two thousand, four hundred sixty-five".