101766882065 has 4 divisors (see below), whose sum is σ = 122120258484. Its totient is φ = 81413505648.

The previous prime is 101766882037. The next prime is 101766882073. The reversal of 101766882065 is 560288667101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 560288667101 = 31 ⋅18073827971.

It can be written as a sum of positive squares in 2 ways, for example, as 72785564944 + 28981317121 = 269788^2 + 170239^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101766882065 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10176688202 + ... + 10176688211.

It is an arithmetic number, because the mean of its divisors is an integer number (30530064621).

Almost surely, 2^101766882065 is an apocalyptic number.

It is an amenable number.

101766882065 is a deficient number, since it is larger than the sum of its proper divisors (20353376419).

101766882065 is an equidigital number, since it uses as much as digits as its factorization.

101766882065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20353376418.

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 101766882065 in words is "one hundred one billion, seven hundred sixty-six million, eight hundred eighty-two thousand, sixty-five".