41166340691 has 4 divisors (see below), whose sum is σ = 47047246512. Its totient is φ = 35285434872.

The previous prime is 41166340687. The next prime is 41166340697. The reversal of 41166340691 is 19604366114.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 41166340691 - 2² = 41166340687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (41166340697) 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, 2940452900 + ... + 2940452913.

It is an arithmetic number, because the mean of its divisors is an integer number (11761811628).

Almost surely, 2^41166340691 is an apocalyptic number.

41166340691 is a deficient number, since it is larger than the sum of its proper divisors (5880905821).

41166340691 is an equidigital number, since it uses as much as digits as its factorization.

41166340691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5880905820.

The product of its (nonzero) digits is 93312, while the sum is 41.

The spelling of 41166340691 in words is "forty-one billion, one hundred sixty-six million, three hundred forty thousand, six hundred ninety-one".