550422638460 has 72 divisors (see below), whose sum is σ = 1669977778560. Its totient is φ = 146747507328.

The previous prime is 550422638429. The next prime is 550422638461. The reversal of 550422638460 is 64836224055.

550422638460 is a `hidden beast` number, since 5 + 5 + 0 + 4 + 2 + 2 + 638 + 4 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550422638461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 505434 + ... + 1164606.

Almost surely, 2^550422638460 is an apocalyptic number.

It is an amenable number.

550422638460 is an abundant number, since it is smaller than the sum of its proper divisors (1119555140100).

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

550422638460 is a wasteful number, since it uses less digits than its factorization.

550422638460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663827 (or 663822 counting only the distinct ones).

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

The spelling of 550422638460 in words is "five hundred fifty billion, four hundred twenty-two million, six hundred thirty-eight thousand, four hundred sixty".