65738866 has 8 divisors (see below), whose sum is σ = 98653104. Its totient is φ = 32854500.

The previous prime is 65738863. The next prime is 65738891. The reversal of 65738866 is 66883756.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (65738861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 760 + ... + 11491.

It is an arithmetic number, because the mean of its divisors is an integer number (12331638).

Almost surely, 2^65738866 is an apocalyptic number.

65738866 is a deficient number, since it is larger than the sum of its proper divisors (32914238).

65738866 is a wasteful number, since it uses less digits than its factorization.

65738866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14936.

The product of its digits is 1451520, while the sum is 49.

The square root of 65738866 is about 8107.9507891945. The cubic root of 65738866 is about 403.5903151747.

The spelling of 65738866 in words is "sixty-five million, seven hundred thirty-eight thousand, eight hundred sixty-six".