2206515318551 has 2 divisors, whose sum is σ = 2206515318552. Its totient is φ = 2206515318550.

The previous prime is 2206515318547. The next prime is 2206515318571. The reversal of 2206515318551 is 1558135156022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2206515318551 - 2² = 2206515318547 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2206515318571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1103257659275 + 1103257659276.

It is an arithmetic number, because the mean of its divisors is an integer number (1103257659276).

Almost surely, 2^{2206515318551} is an apocalyptic number.

2206515318551 is a deficient number, since it is larger than the sum of its proper divisors (1).

2206515318551 is an equidigital number, since it uses as much as digits as its factorization.

2206515318551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360000, while the sum is 44.

The spelling of 2206515318551 in words is "two trillion, two hundred six billion, five hundred fifteen million, three hundred eighteen thousand, five hundred fifty-one".