55623533533656 has 64 divisors (see below), whose sum is σ = 153173366910720. Its totient is φ = 16691969454720.

The previous prime is 55623533533643. The next prime is 55623533533657. The reversal of 55623533533656 is 65633533532655.

It is a self number, because there is not a number n which added to its sum of digits gives 55623533533656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55623533533657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1022765055 + ... + 1022819438.

It is an arithmetic number, because the mean of its divisors is an integer number (2393333857980).

Almost surely, 2^{55623533533656} is an apocalyptic number.

It is an amenable number.

55623533533656 is an abundant number, since it is smaller than the sum of its proper divisors (97549833377064).

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

55623533533656 is a wasteful number, since it uses less digits than its factorization.

55623533533656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2045584616 (or 2045584612 counting only the distinct ones).

The product of its digits is 328050000, while the sum is 60.

The spelling of 55623533533656 in words is "fifty-five trillion, six hundred twenty-three billion, five hundred thirty-three million, five hundred thirty-three thousand, six hundred fifty-six".