65788956961 has 24 divisors (see below), whose sum is σ = 81527173440. Its totient is φ = 51981673536.

The previous prime is 65788956859. The next prime is 65788956983. The reversal of 65788956961 is 16965988756.

It is not a de Polignac number, because 65788956961 - 2¹⁵ = 65788924193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65788956661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 836611 + ... + 911863.

It is an arithmetic number, because the mean of its divisors is an integer number (3396965560).

Almost surely, 2^65788956961 is an apocalyptic number.

It is an amenable number.

65788956961 is a deficient number, since it is larger than the sum of its proper divisors (15738216479).

65788956961 is a wasteful number, since it uses less digits than its factorization.

65788956961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76025 (or 76012 counting only the distinct ones).

The product of its digits is 195955200, while the sum is 70.

It can be divided in two parts, 6578895 and 6961, that added together give a palindrome (6585856).

The spelling of 65788956961 in words is "sixty-five billion, seven hundred eighty-eight million, nine hundred fifty-six thousand, nine hundred sixty-one".