604145565261 has 24 divisors (see below), whose sum is σ = 1018539235584. Its totient is φ = 337880800800.

The previous prime is 604145565229. The next prime is 604145565269. The reversal of 604145565261 is 162565541406.

604145565261 is a `hidden beast` number, since 6 + 0 + 41 + 4 + 556 + 52 + 6 + 1 = 666.

It is not a de Polignac number, because 604145565261 - 2⁵ = 604145565229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (604145565269) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102014190 + ... + 102020111.

It is an arithmetic number, because the mean of its divisors is an integer number (42439134816).

Almost surely, 2^604145565261 is an apocalyptic number.

It is an amenable number.

604145565261 is a deficient number, since it is larger than the sum of its proper divisors (414393670323).

604145565261 is a wasteful number, since it uses less digits than its factorization.

604145565261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204034361 (or 204034358 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The spelling of 604145565261 in words is "six hundred four billion, one hundred forty-five million, five hundred sixty-five thousand, two hundred sixty-one".