10566666501 has 16 divisors (see below), whose sum is σ = 14326249728. Its totient is φ = 6925867200.

The previous prime is 10566666469. The next prime is 10566666521.

10566666501 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 10566666501 - 2⁵ = 10566666469 is a prime.

It is a super-2 number, since 2×10566666501² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10566666521) 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, 441636 + ... + 464946.

It is an arithmetic number, because the mean of its divisors is an integer number (895390608).

Almost surely, 2^10566666501 is an apocalyptic number.

It is an amenable number.

10566666501 is a deficient number, since it is larger than the sum of its proper divisors (3759583227).

10566666501 is a wasteful number, since it uses less digits than its factorization.

10566666501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25852.

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 10566666501 in words is "ten billion, five hundred sixty-six million, six hundred sixty-six thousand, five hundred one".