564812125637520 has 80 divisors (see below), whose sum is σ = 1853912741811840. Its totient is φ = 141756768786432.

The previous prime is 564812125637491. The next prime is 564812125637581. The reversal of 564812125637520 is 25736521218465.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69217168180 + ... + 69217176339.

It is an arithmetic number, because the mean of its divisors is an integer number (23173909272648).

Almost surely, 2^{564812125637520} is an apocalyptic number.

It is an amenable number.

564812125637520 is an abundant number, since it is smaller than the sum of its proper divisors (1289100616174320).

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

564812125637520 is a wasteful number, since it uses less digits than its factorization.

564812125637520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138434344552 (or 138434344546 counting only the distinct ones).

The product of its (nonzero) digits is 24192000, while the sum is 57.

The spelling of 564812125637520 in words is "five hundred sixty-four trillion, eight hundred twelve billion, one hundred twenty-five million, six hundred thirty-seven thousand, five hundred twenty".