101660617 has 4 divisors (see below), whose sum is σ = 101796736. Its totient is φ = 101524500.

The previous prime is 101660591. The next prime is 101660623. The reversal of 101660617 is 716066101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 716066101 = 401 ⋅1785701.

It is a cyclic number.

It is not a de Polignac number, because 101660617 - 2¹⁵ = 101627849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101600617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66933 + ... + 68434.

It is an arithmetic number, because the mean of its divisors is an integer number (25449184).

Almost surely, 2^101660617 is an apocalyptic number.

It is an amenable number.

101660617 is a deficient number, since it is larger than the sum of its proper divisors (136119).

101660617 is an equidigital number, since it uses as much as digits as its factorization.

101660617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136118.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 101660617 is about 10082.6889766570. The cubic root of 101660617 is about 466.7140914955.

The spelling of 101660617 in words is "one hundred one million, six hundred sixty thousand, six hundred seventeen".