64557068 has 24 divisors (see below), whose sum is σ = 114874032. Its totient is φ = 31739904.

The previous prime is 64557047. The next prime is 64557071. The reversal of 64557068 is 86075546.

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, 111596 + ... + 112172.

It is an arithmetic number, because the mean of its divisors is an integer number (4786418).

Almost surely, 2^64557068 is an apocalyptic number.

It is an amenable number.

64557068 is a deficient number, since it is larger than the sum of its proper divisors (50316964).

64557068 is a wasteful number, since it uses less digits than its factorization.

64557068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001 (or 999 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 64557068 is about 8034.7413150642. The cubic root of 64557068 is about 401.1572072832.

The spelling of 64557068 in words is "sixty-four million, five hundred fifty-seven thousand, sixty-eight".