555563473920 has 1584 divisors, whose sum is σ = 2504439127008. Its totient is φ = 117050572800.

The previous prime is 555563473879. The next prime is 555563473937. The reversal of 555563473920 is 29374365555.

555563473920 is a `hidden beast` number, since 5 + 5 + 5 + 563 + 4 + 73 + 9 + 2 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 792529570 + ... + 792530270.

Almost surely, 2^555563473920 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 555563473920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1252219563504).

555563473920 is an abundant number, since it is smaller than the sum of its proper divisors (1948875653088).

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

555563473920 is a wasteful number, since it uses less digits than its factorization.

555563473920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768 (or 731 counting only the distinct ones).

The product of its (nonzero) digits is 17010000, while the sum is 54.

The spelling of 555563473920 in words is "five hundred fifty-five billion, five hundred sixty-three million, four hundred seventy-three thousand, nine hundred twenty".