555115680 has 480 divisors, whose sum is σ = 2327149440. Its totient is φ = 121927680.

The previous prime is 555115657. The next prime is 555115697. The reversal of 555115680 is 86511555.

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 (36).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2630775 + ... + 2630985.

It is an arithmetic number, because the mean of its divisors is an integer number (4848228).

Almost surely, 2^555115680 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 555115680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1163574720).

555115680 is an abundant number, since it is smaller than the sum of its proper divisors (1772033760).

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

555115680 is a wasteful number, since it uses less digits than its factorization.

555115680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 36.

The square root of 555115680 is about 23560.8930221246. The cubic root of 555115680 is about 821.8536688744.

The spelling of 555115680 in words is "five hundred fifty-five million, one hundred fifteen thousand, six hundred eighty".