65243564 has 6 divisors (see below), whose sum is σ = 114176244. Its totient is φ = 32621780.

The previous prime is 65243539. The next prime is 65243593. The reversal of 65243564 is 46534256.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8155442 + ... + 8155449.

It is an arithmetic number, because the mean of its divisors is an integer number (19029374).

Almost surely, 2^65243564 is an apocalyptic number.

It is an amenable number.

65243564 is a deficient number, since it is larger than the sum of its proper divisors (48932680).

65243564 is a wasteful number, since it uses less digits than its factorization.

65243564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16310895 (or 16310893 counting only the distinct ones).

The product of its digits is 86400, while the sum is 35.

The square root of 65243564 is about 8077.3488224788. The cubic root of 65243564 is about 402.5741570860.

The spelling of 65243564 in words is "sixty-five million, two hundred forty-three thousand, five hundred sixty-four".