950613661 has 2 divisors, whose sum is σ = 950613662. Its totient is φ = 950613660.

The previous prime is 950613641. The next prime is 950613679. The reversal of 950613661 is 166316059.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 808264900 + 142348761 = 28430^2 + 11931^2 .

It is a cyclic number.

It is not a de Polignac number, because 950613661 - 2¹⁹ = 950089373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 950613661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (950613611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 475306830 + 475306831.

It is an arithmetic number, because the mean of its divisors is an integer number (475306831).

Almost surely, 2^950613661 is an apocalyptic number.

950613661 is the 13789-th centered decagonal number.

It is an amenable number.

950613661 is a deficient number, since it is larger than the sum of its proper divisors (1).

950613661 is an equidigital number, since it uses as much as digits as its factorization.

950613661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 950613661 is about 30832.0233037016. The cubic root of 950613661 is about 983.2591963897.

The spelling of 950613661 in words is "nine hundred fifty million, six hundred thirteen thousand, six hundred sixty-one".