41511645666 has 64 divisors (see below), whose sum is σ = 92847513600. Its totient is φ = 13747578768.

The previous prime is 41511645649. The next prime is 41511645697. The reversal of 41511645666 is 66654611514.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5972005 + ... + 5978951.

It is an arithmetic number, because the mean of its divisors is an integer number (1450742400).

Almost surely, 2^41511645666 is an apocalyptic number.

41511645666 is an abundant number, since it is smaller than the sum of its proper divisors (51335867934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

41511645666 is a wasteful number, since it uses less digits than its factorization.

41511645666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7660 (or 7654 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The spelling of 41511645666 in words is "forty-one billion, five hundred eleven million, six hundred forty-five thousand, six hundred sixty-six".