2040606405091 has 2 divisors, whose sum is σ = 2040606405092. Its totient is φ = 2040606405090.

The previous prime is 2040606405067. The next prime is 2040606405151. The reversal of 2040606405091 is 1905046060402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2040606405091 - 2⁵ = 2040606405059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2040606405091.

It is not a weakly prime, because it can be changed into another prime (2040606465091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1020303202545 + 1020303202546.

It is an arithmetic number, because the mean of its divisors is an integer number (1020303202546).

Almost surely, 2^{2040606405091} is an apocalyptic number.

2040606405091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2040606405091 is an equidigital number, since it uses as much as digits as its factorization.

2040606405091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 2040606405091 in words is "two trillion, forty billion, six hundred six million, four hundred five thousand, ninety-one".