555064640000 has 800 divisors, whose sum is σ = 1594602313920. Its totient is φ = 191471616000.

The previous prime is 555064639973. The next prime is 555064640047. The reversal of 555064640000 is 46460555.

It is a tau number, because it is divible by the number of its divisors (800).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5187519947 + ... + 5187520053.

Almost surely, 2^555064640000 is an apocalyptic number.

555064640000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 555064640000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (797301156960).

555064640000 is an abundant number, since it is smaller than the sum of its proper divisors (1039537673920).

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

555064640000 is a wasteful number, since it uses less digits than its factorization.

555064640000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 555064640000 in words is "five hundred fifty-five billion, sixty-four million, six hundred forty thousand".