555402553240240 has 80 divisors (see below), whose sum is σ = 1300007172001536. Its totient is φ = 220665221856000.

The previous prime is 555402553240193. The next prime is 555402553240289. The reversal of 555402553240240 is 42042355204555.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×555402553240240² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106301719 + ... + 111404041.

Almost surely, 2^{555402553240240} 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 555402553240240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (650003586000768).

555402553240240 is an abundant number, since it is smaller than the sum of its proper divisors (744604618761296).

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

555402553240240 is a wasteful number, since it uses less digits than its factorization.

555402553240240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5111498 (or 5111492 counting only the distinct ones).

The product of its (nonzero) digits is 4800000, while the sum is 46.

The spelling of 555402553240240 in words is "five hundred fifty-five trillion, four hundred two billion, five hundred fifty-three million, two hundred forty thousand, two hundred forty".