956765561 has 8 divisors (see below), whose sum is σ = 976482720. Its totient is φ = 937208448.

The previous prime is 956765543. The next prime is 956765581. The reversal of 956765561 is 165567659.

956765561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 956765561 - 2²⁶ = 889656697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (956765581) 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, 27896 + ... + 51881.

It is an arithmetic number, because the mean of its divisors is an integer number (122060340).

Almost surely, 2^956765561 is an apocalyptic number.

It is an amenable number.

956765561 is a deficient number, since it is larger than the sum of its proper divisors (19717159).

956765561 is a wasteful number, since it uses less digits than its factorization.

956765561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80023.

The product of its digits is 1701000, while the sum is 50.

The square root of 956765561 is about 30931.6271961240. The cubic root of 956765561 is about 985.3756925331.

The spelling of 956765561 in words is "nine hundred fifty-six million, seven hundred sixty-five thousand, five hundred sixty-one".