101660623 has 2 divisors, whose sum is σ = 101660624. Its totient is φ = 101660622.

The previous prime is 101660591. The next prime is 101660639. The reversal of 101660623 is 326066101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101660623 - 2⁵ = 101660591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101660653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50830311 + 50830312.

It is an arithmetic number, because the mean of its divisors is an integer number (50830312).

Almost surely, 2^101660623 is an apocalyptic number.

101660623 is a deficient number, since it is larger than the sum of its proper divisors (1).

101660623 is an equidigital number, since it uses as much as digits as its factorization.

101660623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 101660623 is about 10082.6892741966. The cubic root of 101660623 is about 466.7141006773.

The spelling of 101660623 in words is "one hundred one million, six hundred sixty thousand, six hundred twenty-three".