225015446466 has 24 divisors (see below), whose sum is σ = 488291709360. Its totient is φ = 74888496216.

The previous prime is 225015446449. The next prime is 225015446479. The reversal of 225015446466 is 664644510522.

225015446466 is a `hidden beast` number, since 22 + 501 + 5 + 4 + 4 + 64 + 66 = 666.

It is a super-2 number, since 2×225015446466² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9709156 + ... + 9732303.

It is an arithmetic number, because the mean of its divisors is an integer number (20345487890).

Almost surely, 2^225015446466 is an apocalyptic number.

225015446466 is an abundant number, since it is smaller than the sum of its proper divisors (263276262894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225015446466 is a wasteful number, since it uses less digits than its factorization.

225015446466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19442110 (or 19442107 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 45.

Adding to 225015446466 its reverse (664644510522), we get a palindrome (889659956988).

The spelling of 225015446466 in words is "two hundred twenty-five billion, fifteen million, four hundred forty-six thousand, four hundred sixty-six".