2000005554991 has 2 divisors, whose sum is σ = 2000005554992. Its totient is φ = 2000005554990.

The previous prime is 2000005554977. The next prime is 2000005555091. The reversal of 2000005554991 is 1994555000002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2000005554991 - 2¹⁷ = 2000005423919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2000005551991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000002777495 + 1000002777496.

It is an arithmetic number, because the mean of its divisors is an integer number (1000002777496).

Almost surely, 2^{2000005554991} is an apocalyptic number.

2000005554991 is a deficient number, since it is larger than the sum of its proper divisors (1).

2000005554991 is an equidigital number, since it uses as much as digits as its factorization.

2000005554991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81000, while the sum is 40.

The spelling of 2000005554991 in words is "two trillion, five million, five hundred fifty-four thousand, nine hundred ninety-one".