65664486 has 16 divisors (see below), whose sum is σ = 145921200. Its totient is φ = 21888144.

The previous prime is 65664481. The next prime is 65664491. The reversal of 65664486 is 68446656.

65664486 is a `hidden beast` number, since 6 + 566 + 4 + 4 + 86 = 666.

It is an interprime number because it is at equal distance from previous prime (65664481) and next prime (65664491).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65664481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 607951 + ... + 608058.

It is an arithmetic number, because the mean of its divisors is an integer number (9120075).

Almost surely, 2^65664486 is an apocalyptic number.

65664486 is an abundant number, since it is smaller than the sum of its proper divisors (80256714).

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

65664486 is a wasteful number, since it uses less digits than its factorization.

65664486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216020 (or 1216014 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 65664486 is about 8103.3626353508. The cubic root of 65664486 is about 403.4380441351.

The spelling of 65664486 in words is "sixty-five million, six hundred sixty-four thousand, four hundred eighty-six".