10666146641 has 4 divisors (see below), whose sum is σ = 11227522800. Its totient is φ = 10104770484.

The previous prime is 10666146637. The next prime is 10666146649. The reversal of 10666146641 is 14664166601.

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 10666146641 - 2² = 10666146637 is a prime.

It is a super-2 number, since 2×10666146641² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10666146649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280688051 + ... + 280688088.

It is an arithmetic number, because the mean of its divisors is an integer number (2806880700).

Almost surely, 2^10666146641 is an apocalyptic number.

It is an amenable number.

10666146641 is a deficient number, since it is larger than the sum of its proper divisors (561376159).

10666146641 is an equidigital number, since it uses as much as digits as its factorization.

10666146641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561376158.

The product of its (nonzero) digits is 124416, while the sum is 41.

The spelling of 10666146641 in words is "ten billion, six hundred sixty-six million, one hundred forty-six thousand, six hundred forty-one".