549668770560 has 864 divisors, whose sum is σ = 2380613114880. Its totient is φ = 113995579392.

The previous prime is 549668770543. The next prime is 549668770561. The reversal of 549668770560 is 65077866945.

549668770560 is a `hidden beast` number, since 5 + 4 + 9 + 6 + 68 + 7 + 7 + 0 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (549668770561) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 61846437 + ... + 61855323.

Almost surely, 2^549668770560 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 549668770560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1190306557440).

549668770560 is an abundant number, since it is smaller than the sum of its proper divisors (1830944344320).

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

549668770560 is a wasteful number, since it uses less digits than its factorization.

549668770560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8993 (or 8976 counting only the distinct ones).

The product of its (nonzero) digits is 76204800, while the sum is 63.

The spelling of 549668770560 in words is "five hundred forty-nine billion, six hundred sixty-eight million, seven hundred seventy thousand, five hundred sixty".