956216953261 has 2 divisors, whose sum is σ = 956216953262. Its totient is φ = 956216953260.

The previous prime is 956216953259. The next prime is 956216953277. The reversal of 956216953261 is 162359612659.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 490533545161 + 465683408100 = 700381^2 + 682410^2 .

It is a cyclic number.

It is not a de Polignac number, because 956216953261 - 2¹ = 956216953259 is a prime.

Together with 956216953259, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (956216953231) 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 as a sum of consecutive naturals, namely, 478108476630 + 478108476631.

It is an arithmetic number, because the mean of its divisors is an integer number (478108476631).

Almost surely, 2^956216953261 is an apocalyptic number.

It is an amenable number.

956216953261 is a deficient number, since it is larger than the sum of its proper divisors (1).

956216953261 is an equidigital number, since it uses as much as digits as its factorization.

956216953261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5248800, while the sum is 55.

The spelling of 956216953261 in words is "nine hundred fifty-six billion, two hundred sixteen million, nine hundred fifty-three thousand, two hundred sixty-one".