551086364160 has 480 divisors, whose sum is σ = 1984668285600. Its totient is φ = 146554748928.

The previous prime is 551086364137. The next prime is 551086364243. The reversal of 551086364160 is 61463680155.

551086364160 is a `hidden beast` number, since 5 + 5 + 1 + 0 + 8 + 636 + 4 + 1 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 279312934 + ... + 279314906.

It is an arithmetic number, because the mean of its divisors is an integer number (4134725595).

Almost surely, 2^551086364160 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 551086364160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (992334142800).

551086364160 is an abundant number, since it is smaller than the sum of its proper divisors (1433581921440).

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

551086364160 is an equidigital number, since it uses as much as digits as its factorization.

551086364160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2460 (or 2432 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 551086364160 in words is "five hundred fifty-one billion, eighty-six million, three hundred sixty-four thousand, one hundred sixty".