2011660747 has 2 divisors, whose sum is σ = 2011660748. Its totient is φ = 2011660746.

The previous prime is 2011660723. The next prime is 2011660769. The reversal of 2011660747 is 7470661102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2011660747 - 2⁷ = 2011660619 is a prime.

It is a super-2 number, since 2×2011660747² = 8093557922041196018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2011663747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005830373 + 1005830374.

It is an arithmetic number, because the mean of its divisors is an integer number (1005830374).

Almost surely, 2^2011660747 is an apocalyptic number.

2011660747 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011660747 is an equidigital number, since it uses as much as digits as its factorization.

2011660747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 2011660747 is about 44851.5411886816. The cubic root of 2011660747 is about 1262.3649099256.

The spelling of 2011660747 in words is "two billion, eleven million, six hundred sixty thousand, seven hundred forty-seven".