564156538540 has 96 divisors (see below), whose sum is σ = 1385645184000. Its totient is φ = 188950890240.

The previous prime is 564156538537. The next prime is 564156538573. The reversal of 564156538540 is 45835651465.

564156538540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 823111 + ... + 1343809.

It is an arithmetic number, because the mean of its divisors is an integer number (14433804000).

Almost surely, 2^564156538540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 564156538540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (692822592000).

564156538540 is an abundant number, since it is smaller than the sum of its proper divisors (821488645460).

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

564156538540 is a wasteful number, since it uses less digits than its factorization.

564156538540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520895 (or 520893 counting only the distinct ones).

The product of its (nonzero) digits is 8640000, while the sum is 52.

The spelling of 564156538540 in words is "five hundred sixty-four billion, one hundred fifty-six million, five hundred thirty-eight thousand, five hundred forty".