65695663 has 8 divisors (see below), whose sum is σ = 71726976. Its totient is φ = 59674200.

The previous prime is 65695657. The next prime is 65695681. The reversal of 65695663 is 36659656.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65695663 - 2⁵ = 65695631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65690663) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 22878 + ... + 25588.

It is an arithmetic number, because the mean of its divisors is an integer number (8965872).

Almost surely, 2^65695663 is an apocalyptic number.

65695663 is a deficient number, since it is larger than the sum of its proper divisors (6031313).

65695663 is a wasteful number, since it uses less digits than its factorization.

65695663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4925.

The product of its digits is 874800, while the sum is 46.

The square root of 65695663 is about 8105.2861146291. The cubic root of 65695663 is about 403.5018838073.

The spelling of 65695663 in words is "sixty-five million, six hundred ninety-five thousand, six hundred sixty-three".