65656966 has 8 divisors (see below), whose sum is σ = 99872784. Its totient is φ = 32366040.

The previous prime is 65656963. The next prime is 65657017. The reversal of 65656966 is 66965656.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65656961) 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, 231045 + ... + 231328.

It is an arithmetic number, because the mean of its divisors is an integer number (12484098).

Almost surely, 2^65656966 is an apocalyptic number.

65656966 is a deficient number, since it is larger than the sum of its proper divisors (34215818).

65656966 is a wasteful number, since it uses less digits than its factorization.

65656966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462446.

The product of its digits is 1749600, while the sum is 49.

The square root of 65656966 is about 8102.8986171616. The cubic root of 65656966 is about 403.4226427611.

It can be divided in two parts, 6565 and 6966, that added together give a palindrome (13531).

The spelling of 65656966 in words is "sixty-five million, six hundred fifty-six thousand, nine hundred sixty-six".