6555623807553 has 8 divisors (see below), whose sum is σ = 8741719086816. Its totient is φ = 4369972200000.

The previous prime is 6555623807503. The next prime is 6555623807591. The reversal of 6555623807553 is 3557083265556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6555623807553 - 2³³ = 6547033872961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6555623807503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110883448 + ... + 110942553.

It is an arithmetic number, because the mean of its divisors is an integer number (1092714885852).

Almost surely, 2^{6555623807553} is an apocalyptic number.

It is an amenable number.

6555623807553 is a deficient number, since it is larger than the sum of its proper divisors (2186095279263).

6555623807553 is a wasteful number, since it uses less digits than its factorization.

6555623807553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221835855.

The product of its (nonzero) digits is 113400000, while the sum is 60.

The spelling of 6555623807553 in words is "six trillion, five hundred fifty-five billion, six hundred twenty-three million, eight hundred seven thousand, five hundred fifty-three".