2000661427 has 2 divisors, whose sum is σ = 2000661428. Its totient is φ = 2000661426.

The previous prime is 2000661419. The next prime is 2000661431. The reversal of 2000661427 is 7241660002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2000661427 - 2³ = 2000661419 is a prime.

It is a super-2 number, since 2×2000661427² = 8005292290971352658, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2000661395 and 2000661404.

It is not a weakly prime, because it can be changed into another prime (2000661457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000330713 + 1000330714.

It is an arithmetic number, because the mean of its divisors is an integer number (1000330714).

Almost surely, 2^2000661427 is an apocalyptic number.

2000661427 is a deficient number, since it is larger than the sum of its proper divisors (1).

2000661427 is an equidigital number, since it uses as much as digits as its factorization.

2000661427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 2000661427 is about 44728.7539173628. The cubic root of 2000661427 is about 1260.0599255534.

The spelling of 2000661427 in words is "two billion, six hundred sixty-one thousand, four hundred twenty-seven".