549975829320 has 512 divisors, whose sum is σ = 1979287488000. Its totient is φ = 135409397760.

The previous prime is 549975829241. The next prime is 549975829321. The reversal of 549975829320 is 23928579945.

549975829320 is a `hidden beast` number, since 5 + 49 + 9 + 7 + 582 + 9 + 3 + 2 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (549975829321) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 170745310 + ... + 170748530.

It is an arithmetic number, because the mean of its divisors is an integer number (3865795875).

Almost surely, 2^549975829320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 549975829320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (989643744000).

549975829320 is an abundant number, since it is smaller than the sum of its proper divisors (1429311658680).

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

549975829320 is a wasteful number, since it uses less digits than its factorization.

549975829320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3470 (or 3460 counting only the distinct ones).

The product of its (nonzero) digits is 48988800, while the sum is 63.

The spelling of 549975829320 in words is "five hundred forty-nine billion, nine hundred seventy-five million, eight hundred twenty-nine thousand, three hundred twenty".