959365217961 has 6 divisors (see below), whose sum is σ = 1385749759290. Its totient is φ = 639576811968.

The previous prime is 959365217947. The next prime is 959365217963. The reversal of 959365217961 is 169712563959.

959365217961 is a `hidden beast` number, since 9 + 5 + 9 + 36 + 521 + 79 + 6 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 930607502400 + 28757715561 = 964680^2 + 169581^2 .

It is not a de Polignac number, because 959365217961 - 2⁵ = 959365217929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (959365217963) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53298067656 + ... + 53298067673.

It is an arithmetic number, because the mean of its divisors is an integer number (230958293215).

Almost surely, 2^959365217961 is an apocalyptic number.

It is an amenable number.

959365217961 is a deficient number, since it is larger than the sum of its proper divisors (426384541329).

959365217961 is a wasteful number, since it uses less digits than its factorization.

959365217961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106596135335 (or 106596135332 counting only the distinct ones).

The product of its digits is 27556200, while the sum is 63.

The spelling of 959365217961 in words is "nine hundred fifty-nine billion, three hundred sixty-five million, two hundred seventeen thousand, nine hundred sixty-one".