6690050578331 has 2 divisors, whose sum is σ = 6690050578332. Its totient is φ = 6690050578330.

The previous prime is 6690050578291. The next prime is 6690050578333. The reversal of 6690050578331 is 1338750500966.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6690050578331 - 2¹⁰ = 6690050577307 is a prime.

It is a super-2 number, since 2×6690050578331² (a number of 26 digits) contains 22 as substring.

Together with 6690050578333, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6690050578333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3345025289165 + 3345025289166.

It is an arithmetic number, because the mean of its divisors is an integer number (3345025289166).

Almost surely, 2^{6690050578331} is an apocalyptic number.

6690050578331 is a deficient number, since it is larger than the sum of its proper divisors (1).

6690050578331 is an equidigital number, since it uses as much as digits as its factorization.

6690050578331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4082400, while the sum is 53.

The spelling of 6690050578331 in words is "six trillion, six hundred ninety billion, fifty million, five hundred seventy-eight thousand, three hundred thirty-one".