961656281233 has 8 divisors (see below), whose sum is σ = 969140753856. Its totient is φ = 954173984400.

The previous prime is 961656281057. The next prime is 961656281237. The reversal of 961656281233 is 332182656169.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-961656281233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (961656281237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349135 + ... + 1430107.

It is an arithmetic number, because the mean of its divisors is an integer number (121142594232).

Almost surely, 2^961656281233 is an apocalyptic number.

It is an amenable number.

961656281233 is a deficient number, since it is larger than the sum of its proper divisors (7484472623).

961656281233 is a wasteful number, since it uses less digits than its factorization.

961656281233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087895.

The product of its digits is 2799360, while the sum is 52.

The spelling of 961656281233 in words is "nine hundred sixty-one billion, six hundred fifty-six million, two hundred eighty-one thousand, two hundred thirty-three".