1659300961 has 2 divisors, whose sum is σ = 1659300962. Its totient is φ = 1659300960.

The previous prime is 1659300931. The next prime is 1659300967. The reversal of 1659300961 is 1690039561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1652829025 + 6471936 = 40655^2 + 2544^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1659300961 is a prime.

It is not a weakly prime, because it can be changed into another prime (1659300967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 829650480 + 829650481.

It is an arithmetic number, because the mean of its divisors is an integer number (829650481).

Almost surely, 2^1659300961 is an apocalyptic number.

It is an amenable number.

1659300961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1659300961 is an equidigital number, since it uses as much as digits as its factorization.

1659300961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 1659300961 is about 40734.5180528750. The cubic root of 1659300961 is about 1183.8819202250.

The spelling of 1659300961 in words is "one billion, six hundred fifty-nine million, three hundred thousand, nine hundred sixty-one".