550264155840 has 1680 divisors, whose sum is σ = 2446099881984. Its totient is φ = 114885734400.

The previous prime is 550264155829. The next prime is 550264155923. The reversal of 550264155840 is 48551462055.

550264155840 is a `hidden beast` number, since 5 + 5 + 0 + 2 + 64 + 1 + 5 + 584 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1680).

It is a super-2 number, since 2×550264155840² (a number of 24 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 2030494905 + ... + 2030495175.

Almost surely, 2^550264155840 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 550264155840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1223049940992).

550264155840 is an abundant number, since it is smaller than the sum of its proper divisors (1895835726144).

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

550264155840 is a wasteful number, since it uses less digits than its factorization.

550264155840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 960000, while the sum is 45.

The spelling of 550264155840 in words is "five hundred fifty billion, two hundred sixty-four million, one hundred fifty-five thousand, eight hundred forty".