956202661 has 2 divisors, whose sum is σ = 956202662. Its totient is φ = 956202660.

The previous prime is 956202647. The next prime is 956202671. The reversal of 956202661 is 166202659.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 916272900 + 39929761 = 30270^2 + 6319^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-956202661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 956202661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (956202631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 478101330 + 478101331.

It is an arithmetic number, because the mean of its divisors is an integer number (478101331).

Almost surely, 2^956202661 is an apocalyptic number.

It is an amenable number.

956202661 is a deficient number, since it is larger than the sum of its proper divisors (1).

956202661 is an equidigital number, since it uses as much as digits as its factorization.

956202661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 956202661 is about 30922.5267563956. The cubic root of 956202661 is about 985.1824104960.

The spelling of 956202661 in words is "nine hundred fifty-six million, two hundred two thousand, six hundred sixty-one".