551361709080 has 1920 divisors, whose sum is σ = 2471796518400. Its totient is φ = 107602919424.

The previous prime is 551361709079. The next prime is 551361709111. The reversal of 551361709080 is 80907163155.

It is a happy number.

551361709080 is a `hidden beast` number, since 5 + 513 + 61 + 70 + 9 + 0 + 8 + 0 = 666.

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 479 ways as a sum of consecutive naturals, for example, 4879307104 + ... + 4879307216.

It is an arithmetic number, because the mean of its divisors is an integer number (1287394020).

Almost surely, 2^551361709080 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 551361709080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1235898259200).

551361709080 is an abundant number, since it is smaller than the sum of its proper divisors (1920434809320).

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

551361709080 is a wasteful number, since it uses less digits than its factorization.

551361709080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The spelling of 551361709080 in words is "five hundred fifty-one billion, three hundred sixty-one million, seven hundred nine thousand, eighty".