64206565564 has 24 divisors (see below), whose sum is σ = 112927288320. Its totient is φ = 31941927024.

The previous prime is 64206565543. The next prime is 64206565573. The reversal of 64206565564 is 46556560246.

64206565564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 828717 + ... + 902875.

It is an arithmetic number, because the mean of its divisors is an integer number (4705303680).

Almost surely, 2^64206565564 is an apocalyptic number.

It is an amenable number.

64206565564 is a deficient number, since it is larger than the sum of its proper divisors (48720722756).

64206565564 is a wasteful number, since it uses less digits than its factorization.

64206565564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75249 (or 75247 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 49.

The spelling of 64206565564 in words is "sixty-four billion, two hundred six million, five hundred sixty-five thousand, five hundred sixty-four".