4040700661 has 2 divisors, whose sum is σ = 4040700662. Its totient is φ = 4040700660.

The previous prime is 4040700647. The next prime is 4040700793. The reversal of 4040700661 is 1660070404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3564806436 + 475894225 = 59706^2 + 21815^2 .

It is a cyclic number.

It is not a de Polignac number, because 4040700661 - 2⁹ = 4040700149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4040700061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2020350330 + 2020350331.

It is an arithmetic number, because the mean of its divisors is an integer number (2020350331).

Almost surely, 2^4040700661 is an apocalyptic number.

It is an amenable number.

4040700661 is a deficient number, since it is larger than the sum of its proper divisors (1).

4040700661 is an equidigital number, since it uses as much as digits as its factorization.

4040700661 is an odious number, because the sum of its binary digits is odd.

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

The square root of 4040700661 is about 63566.5058108435. The cubic root of 4040700661 is about 1592.7669160679.

The spelling of 4040700661 in words is "four billion, forty million, seven hundred thousand, six hundred sixty-one".