106566550665 has 16 divisors (see below), whose sum is σ = 175114765248. Its totient is φ = 55299398976.

The previous prime is 106566550661. The next prime is 106566550679. The reversal of 106566550665 is 566055665601.

It is not a de Polignac number, because 106566550665 - 2² = 106566550661 is a prime.

It is a super-2 number, since 2×106566550665² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106566550661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96005347 + ... + 96006456.

It is an arithmetic number, because the mean of its divisors is an integer number (10944672828).

Almost surely, 2^106566550665 is an apocalyptic number.

106566550665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

106566550665 is a deficient number, since it is larger than the sum of its proper divisors (68548214583).

106566550665 is a wasteful number, since it uses less digits than its factorization.

106566550665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192011848.

The product of its (nonzero) digits is 4860000, while the sum is 51.

It can be divided in two parts, 106566 and 550665, that added together give a triangular number (657231 = T₁₁₄₆).

The spelling of 106566550665 in words is "one hundred six billion, five hundred sixty-six million, five hundred fifty thousand, six hundred sixty-five".