204415461455641 has 4 divisors (see below), whose sum is σ = 204538086209232. Its totient is φ = 204292836702052.

The previous prime is 204415461455627. The next prime is 204415461455663. The reversal of 204415461455641 is 146554164514402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 204415461455641 - 2⁹ = 204415461455129 is a prime.

It is a super-2 number, since 2×204415461455641² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204415461455441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61312374295 + ... + 61312377628.

It is an arithmetic number, because the mean of its divisors is an integer number (51134521552308).

Almost surely, 2^{204415461455641} is an apocalyptic number.

It is an amenable number.

204415461455641 is a deficient number, since it is larger than the sum of its proper divisors (122624753591).

204415461455641 is a wasteful number, since it uses less digits than its factorization.

204415461455641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122624753590.

The product of its (nonzero) digits is 9216000, while the sum is 52.

The spelling of 204415461455641 in words is "two hundred four trillion, four hundred fifteen billion, four hundred sixty-one million, four hundred fifty-five thousand, six hundred forty-one".