6634669597 has 2 divisors, whose sum is σ = 6634669598. Its totient is φ = 6634669596.

The previous prime is 6634669579. The next prime is 6634669663. The reversal of 6634669597 is 7959664366.

Together with previous prime (6634669579) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4151740356 + 2482929241 = 64434^2 + 49829^2 .

It is a cyclic number.

It is not a de Polignac number, because 6634669597 - 2⁷ = 6634669469 is a prime.

It is a super-2 number, since 2×6634669597² = 88037681322712284818, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6634669537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3317334798 + 3317334799.

It is an arithmetic number, because the mean of its divisors is an integer number (3317334799).

Almost surely, 2^6634669597 is an apocalyptic number.

It is an amenable number.

6634669597 is a deficient number, since it is larger than the sum of its proper divisors (1).

6634669597 is an equidigital number, since it uses as much as digits as its factorization.

6634669597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44089920, while the sum is 61.

The square root of 6634669597 is about 81453.4811840476. The cubic root of 6634669597 is about 1879.0561881165.

The spelling of 6634669597 in words is "six billion, six hundred thirty-four million, six hundred sixty-nine thousand, five hundred ninety-seven".