56421245222664 has 96 divisors (see below), whose sum is σ = 165088832519520. Its totient is φ = 16021457835264.

The previous prime is 56421245222621. The next prime is 56421245222681. The reversal of 56421245222664 is 46622254212465.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146977789 + ... + 147361164.

It is an arithmetic number, because the mean of its divisors is an integer number (1719675338745).

Almost surely, 2^{56421245222664} is an apocalyptic number.

It is an amenable number.

56421245222664 is an abundant number, since it is smaller than the sum of its proper divisors (108667587296856).

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

56421245222664 is a wasteful number, since it uses less digits than its factorization.

56421245222664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294339139 (or 294339128 counting only the distinct ones).

The product of its digits is 11059200, while the sum is 51.

The spelling of 56421245222664 in words is "fifty-six trillion, four hundred twenty-one billion, two hundred forty-five million, two hundred twenty-two thousand, six hundred sixty-four".