204645442146415 has 8 divisors (see below), whose sum is σ = 246028457622528. Its totient is φ = 163413735685920.

The previous prime is 204645442146391. The next prime is 204645442146511. The reversal of 204645442146415 is 514641244546402.

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

It is not a de Polignac number, because 204645442146415 - 2²¹ = 204645440049263 is a prime.

It is a Duffinian 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, 37827250927 + ... + 37827256336.

It is an arithmetic number, because the mean of its divisors is an integer number (30753557202816).

Almost surely, 2^{204645442146415} is an apocalyptic number.

204645442146415 is a deficient number, since it is larger than the sum of its proper divisors (41383015476113).

204645442146415 is an equidigital number, since it uses as much as digits as its factorization.

204645442146415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75654507809.

The product of its (nonzero) digits is 14745600, while the sum is 52.

The spelling of 204645442146415 in words is "two hundred four trillion, six hundred forty-five billion, four hundred forty-two million, one hundred forty-six thousand, four hundred fifteen".