65665532 has 6 divisors (see below), whose sum is σ = 114914688. Its totient is φ = 32832764.

The previous prime is 65665519. The next prime is 65665547. The reversal of 65665532 is 23556656.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8208188 + ... + 8208195.

It is an arithmetic number, because the mean of its divisors is an integer number (19152448).

Almost surely, 2^65665532 is an apocalyptic number.

It is an amenable number.

65665532 is a deficient number, since it is larger than the sum of its proper divisors (49249156).

65665532 is a wasteful number, since it uses less digits than its factorization.

65665532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16416387 (or 16416385 counting only the distinct ones).

The product of its digits is 162000, while the sum is 38.

The square root of 65665532 is about 8103.4271762014. The cubic root of 65665532 is about 403.4401863075.

The spelling of 65665532 in words is "sixty-five million, six hundred sixty-five thousand, five hundred thirty-two".