555515792720 has 160 divisors (see below), whose sum is σ = 1494000806400. Its totient is φ = 188154667008.

The previous prime is 555515792701. The next prime is 555515792747. The reversal of 555515792720 is 27297515555.

It is a happy number.

It is a super-2 number, since 2×555515792720² (a number of 24 digits) contains 22 as substring.

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, 64239437 + ... + 64248083.

It is an arithmetic number, because the mean of its divisors is an integer number (9337505040).

Almost surely, 2^555515792720 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 555515792720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (747000403200).

555515792720 is an abundant number, since it is smaller than the sum of its proper divisors (938485013680).

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

555515792720 is a wasteful number, since it uses less digits than its factorization.

555515792720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10045 (or 10039 counting only the distinct ones).

The product of its (nonzero) digits is 5512500, while the sum is 53.

The spelling of 555515792720 in words is "five hundred fifty-five billion, five hundred fifteen million, seven hundred ninety-two thousand, seven hundred twenty".