41670666861 has 4 divisors (see below), whose sum is σ = 55560889152. Its totient is φ = 27780444572.

The previous prime is 41670666847. The next prime is 41670666881. The reversal of 41670666861 is 16866607614.

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 41670666861 - 2¹⁴ = 41670650477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41670666881) 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, 6945111141 + ... + 6945111146.

It is an arithmetic number, because the mean of its divisors is an integer number (13890222288).

Almost surely, 2^41670666861 is an apocalyptic number.

It is an amenable number.

41670666861 is a deficient number, since it is larger than the sum of its proper divisors (13890222291).

41670666861 is a wasteful number, since it uses less digits than its factorization.

41670666861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13890222290.

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 41670666861 in words is "forty-one billion, six hundred seventy million, six hundred sixty-six thousand, eight hundred sixty-one".