6699214069 has 2 divisors, whose sum is σ = 6699214070. Its totient is φ = 6699214068.

The previous prime is 6699214061. The next prime is 6699214087. The reversal of 6699214069 is 9604129966.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6460140625 + 239073444 = 80375^2 + 15462^2 .

It is a cyclic number.

It is not a de Polignac number, because 6699214069 - 2³ = 6699214061 is a prime.

It is a super-2 number, since 2×6699214069² = 89758938284575073522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6699214061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3349607034 + 3349607035.

It is an arithmetic number, because the mean of its divisors is an integer number (3349607035).

Almost surely, 2^6699214069 is an apocalyptic number.

It is an amenable number.

6699214069 is a deficient number, since it is larger than the sum of its proper divisors (1).

6699214069 is an equidigital number, since it uses as much as digits as its factorization.

6699214069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1259712, while the sum is 52.

The square root of 6699214069 is about 81848.7267402493. The cubic root of 6699214069 is about 1885.1299147069.

The spelling of 6699214069 in words is "six billion, six hundred ninety-nine million, two hundred fourteen thousand, sixty-nine".