55228323947216 has 40 divisors (see below), whose sum is σ = 124787029339200. Its totient is φ = 23669281689312.

The previous prime is 55228323947191. The next prime is 55228323947239. The reversal of 55228323947216 is 61274932382255.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5031729566 + ... + 5031740541.

It is an arithmetic number, because the mean of its divisors is an integer number (3119675733480).

Almost surely, 2^{55228323947216} is an apocalyptic number.

55228323947216 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

55228323947216 is an abundant number, since it is smaller than the sum of its proper divisors (69558705391984).

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

55228323947216 is a wasteful number, since it uses less digits than its factorization.

55228323947216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10063470136 (or 10063470116 counting only the distinct ones).

The product of its digits is 43545600, while the sum is 59.

The spelling of 55228323947216 in words is "fifty-five trillion, two hundred twenty-eight billion, three hundred twenty-three million, nine hundred forty-seven thousand, two hundred sixteen".