2046231661 has 2 divisors, whose sum is σ = 2046231662. Its totient is φ = 2046231660.

The previous prime is 2046231643. The next prime is 2046231689. The reversal of 2046231661 is 1661326402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2038974025 + 7257636 = 45155^2 + 2694^2 .

It is a cyclic number.

It is not a de Polignac number, because 2046231661 - 2⁷ = 2046231533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2046231361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1023115830 + 1023115831.

It is an arithmetic number, because the mean of its divisors is an integer number (1023115831).

Almost surely, 2^2046231661 is an apocalyptic number.

It is an amenable number.

2046231661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2046231661 is an equidigital number, since it uses as much as digits as its factorization.

2046231661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 2046231661 is about 45235.2922064178. The cubic root of 2046231661 is about 1269.5552333072. Note that the first 3 decimals are identical.

The spelling of 2046231661 in words is "two billion, forty-six million, two hundred thirty-one thousand, six hundred sixty-one".