550979598648 has 128 divisors (see below), whose sum is σ = 1450023091200. Its totient is φ = 174258998784.

The previous prime is 550979598619. The next prime is 550979598667. The reversal of 550979598648 is 846895979055.

It is a super-2 number, since 2×550979598648² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 550979598648.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11537043 + ... + 11584701.

It is an arithmetic number, because the mean of its divisors is an integer number (11328305400).

Almost surely, 2^550979598648 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 550979598648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (725011545600).

550979598648 is an abundant number, since it is smaller than the sum of its proper divisors (899043492552).

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

550979598648 is a wasteful number, since it uses less digits than its factorization.

550979598648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48029 (or 48025 counting only the distinct ones).

The product of its (nonzero) digits is 979776000, while the sum is 75.

The spelling of 550979598648 in words is "five hundred fifty billion, nine hundred seventy-nine million, five hundred ninety-eight thousand, six hundred forty-eight".