56665063345446 has 24 divisors (see below), whose sum is σ = 123018388038000. Its totient is φ = 18850803044976.

The previous prime is 56665063345433. The next prime is 56665063345453. The reversal of 56665063345446 is 64454336056665.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3129274321 + ... + 3129292428.

It is an arithmetic number, because the mean of its divisors is an integer number (5125766168250).

Almost surely, 2^{56665063345446} is an apocalyptic number.

56665063345446 is an abundant number, since it is smaller than the sum of its proper divisors (66353324692554).

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

56665063345446 is a wasteful number, since it uses less digits than its factorization.

56665063345446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6258567260 (or 6258567257 counting only the distinct ones).

The product of its (nonzero) digits is 559872000, while the sum is 63.

The spelling of 56665063345446 in words is "fifty-six trillion, six hundred sixty-five billion, sixty-three million, three hundred forty-five thousand, four hundred forty-six".