65655956 has 12 divisors (see below), whose sum is σ = 115670100. Its totient is φ = 32607360.

The previous prime is 65655943. The next prime is 65655977. The reversal of 65655956 is 65955656.

It can be written as a sum of positive squares in 2 ways, for example, as 2992900 + 62663056 = 1730^2 + 7916^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 65655956.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54485 + ... + 55676.

It is an arithmetic number, because the mean of its divisors is an integer number (9639175).

Almost surely, 2^65655956 is an apocalyptic number.

It is an amenable number.

65655956 is a deficient number, since it is larger than the sum of its proper divisors (50014144).

65655956 is a wasteful number, since it uses less digits than its factorization.

65655956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110314 (or 110312 counting only the distinct ones).

The product of its digits is 1215000, while the sum is 47.

The square root of 65655956 is about 8102.8362935456. The cubic root of 65655956 is about 403.4205741360.

It can be divided in two parts, 6565 and 5956, that added together give a palindrome (12521).

The spelling of 65655956 in words is "sixty-five million, six hundred fifty-five thousand, nine hundred fifty-six".