204421255416335 has 16 divisors (see below), whose sum is σ = 258244584242400. Its totient is φ = 154912836612096.

The previous prime is 204421255416317. The next prime is 204421255416361. The reversal of 204421255416335 is 533614552124402.

It is a cyclic number.

It is not a de Polignac number, because 204421255416335 - 2¹² = 204421255412239 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204421255416335.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116884130 + ... + 118620159.

It is an arithmetic number, because the mean of its divisors is an integer number (16140286515150).

Almost surely, 2^{204421255416335} is an apocalyptic number.

204421255416335 is a deficient number, since it is larger than the sum of its proper divisors (53823328826065).

204421255416335 is a wasteful number, since it uses less digits than its factorization.

204421255416335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235513450.

The product of its (nonzero) digits is 3456000, while the sum is 47.

The spelling of 204421255416335 in words is "two hundred four trillion, four hundred twenty-one billion, two hundred fifty-five million, four hundred sixteen thousand, three hundred thirty-five".