65965656956 has 24 divisors (see below), whose sum is σ = 116003136480. Its totient is φ = 32822157312.

The previous prime is 65965656949. The next prime is 65965656959.

65965656956 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65965656959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1030865 + ... + 1092983.

It is an arithmetic number, because the mean of its divisors is an integer number (4833464020).

Almost surely, 2^65965656956 is an apocalyptic number.

It is an amenable number.

65965656956 is a deficient number, since it is larger than the sum of its proper divisors (50037479524).

65965656956 is a wasteful number, since it uses less digits than its factorization.

65965656956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63413 (or 63411 counting only the distinct ones).

The product of its digits is 393660000, while the sum is 68.

The spelling of 65965656956 in words is "sixty-five billion, nine hundred sixty-five million, six hundred fifty-six thousand, nine hundred fifty-six".