101110561666 has 8 divisors (see below), whose sum is σ = 160587362700. Its totient is φ = 47581440768.

The previous prime is 101110561627. The next prime is 101110561693. The reversal of 101110561666 is 666165011101.

101110561666 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 99653231041 + 1457330625 = 315679^2 + 38175^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 2973840049 = 101110561666 / (1 + 0 + 1 + 1 + 1 + 0 + 5 + 6 + 1 + 6 + 6 + 6).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1486919991 + ... + 1486920058.

Almost surely, 2^101110561666 is an apocalyptic number.

101110561666 is a deficient number, since it is larger than the sum of its proper divisors (59476801034).

101110561666 is a wasteful number, since it uses less digits than its factorization.

101110561666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2973840068.

The product of its (nonzero) digits is 6480, while the sum is 34.

Adding to 101110561666 its reverse (666165011101), we get a palindrome (767275572767).

The spelling of 101110561666 in words is "one hundred one billion, one hundred ten million, five hundred sixty-one thousand, six hundred sixty-six".