97166698039 has 2 divisors, whose sum is σ = 97166698040. Its totient is φ = 97166698038.

The previous prime is 97166698021. The next prime is 97166698093. The reversal of 97166698039 is 93089666179.

Together with next prime (97166698093) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97166698039 - 2¹⁹ = 97166173751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97166648039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48583349019 + 48583349020.

It is an arithmetic number, because the mean of its divisors is an integer number (48583349020).

Almost surely, 2^97166698039 is an apocalyptic number.

97166698039 is a deficient number, since it is larger than the sum of its proper divisors (1).

97166698039 is an equidigital number, since it uses as much as digits as its factorization.

97166698039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26453952, while the sum is 64.

The spelling of 97166698039 in words is "ninety-seven billion, one hundred sixty-six million, six hundred ninety-eight thousand, thirty-nine".