551751367680 has 528 divisors, whose sum is σ = 2012506903680. Its totient is φ = 144915775488.

The previous prime is 551751367679. The next prime is 551751367681. The reversal of 551751367680 is 86763157155.

It is a happy number.

551751367680 is a `hidden beast` number, since 5 + 5 + 1 + 7 + 513 + 67 + 68 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (551751367679) and next prime (551751367681).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551751367681) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 83355411 + ... + 83362029.

Almost surely, 2^551751367680 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 551751367680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1006253451840).

551751367680 is an abundant number, since it is smaller than the sum of its proper divisors (1460755536000).

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

551751367680 is an equidigital number, since it uses as much as digits as its factorization.

551751367680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6726 (or 6696 counting only the distinct ones).

The product of its (nonzero) digits is 5292000, while the sum is 54.

The spelling of 551751367680 in words is "five hundred fifty-one billion, seven hundred fifty-one million, three hundred sixty-seven thousand, six hundred eighty".