6551621624299 has 2 divisors, whose sum is σ = 6551621624300. Its totient is φ = 6551621624298.

The previous prime is 6551621624297. The next prime is 6551621624311. The reversal of 6551621624299 is 9924261261556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6551621624299 - 2¹ = 6551621624297 is a prime.

Together with 6551621624297, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6551621624297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3275810812149 + 3275810812150.

It is an arithmetic number, because the mean of its divisors is an integer number (3275810812150).

Almost surely, 2^{6551621624299} is an apocalyptic number.

6551621624299 is a deficient number, since it is larger than the sum of its proper divisors (1).

6551621624299 is an equidigital number, since it uses as much as digits as its factorization.

6551621624299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13996800, while the sum is 58.

The spelling of 6551621624299 in words is "six trillion, five hundred fifty-one billion, six hundred twenty-one million, six hundred twenty-four thousand, two hundred ninety-nine".