10666606501 has 4 divisors (see below), whose sum is σ = 10689644992. Its totient is φ = 10643568012.

The previous prime is 10666606469. The next prime is 10666606507. The reversal of 10666606501 is 10560666601.

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.

It is a cyclic number.

It is not a de Polignac number, because 10666606501 - 2⁵ = 10666606469 is a prime.

It is a super-2 number, since 2×10666606501² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10666606507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11518551 + ... + 11519476.

It is an arithmetic number, because the mean of its divisors is an integer number (2672411248).

Almost surely, 2^10666606501 is an apocalyptic number.

It is an amenable number.

10666606501 is a deficient number, since it is larger than the sum of its proper divisors (23038491).

10666606501 is an equidigital number, since it uses as much as digits as its factorization.

10666606501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23038490.

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 10666606501 in words is "ten billion, six hundred sixty-six million, six hundred six thousand, five hundred one".