6555623807552 has 112 divisors (see below), whose sum is σ = 13995110285568. Its totient is φ = 3035588075520.

The previous prime is 6555623807503. The next prime is 6555623807591. The reversal of 6555623807552 is 2557083265556.

It is a super-2 number, since 2×6555623807552² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6555623807491 and 6555623807500.

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, 66358898 + ... + 66457614.

Almost surely, 2^{6555623807552} 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 6555623807552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6997555142784).

6555623807552 is an abundant number, since it is smaller than the sum of its proper divisors (7439486478016).

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

6555623807552 is a wasteful number, since it uses less digits than its factorization.

6555623807552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99724 (or 99714 counting only the distinct ones).

The product of its (nonzero) digits is 75600000, while the sum is 59.

The spelling of 6555623807552 in words is "six trillion, five hundred fifty-five billion, six hundred twenty-three million, eight hundred seven thousand, five hundred fifty-two".