41606661 has 4 divisors (see below), whose sum is σ = 55475552. Its totient is φ = 27737772.

The previous prime is 41606657. The next prime is 41606683. The reversal of 41606661 is 16660614.

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 not a de Polignac number, because 41606661 - 2² = 41606657 is a prime.

It is a super-2 number, since 2×41606661² = 3462228479137842, which 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 (41605661) 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, 6934441 + ... + 6934446.

It is an arithmetic number, because the mean of its divisors is an integer number (13868888).

Almost surely, 2^41606661 is an apocalyptic number.

It is an amenable number.

41606661 is a deficient number, since it is larger than the sum of its proper divisors (13868891).

41606661 is a wasteful number, since it uses less digits than its factorization.

41606661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13868890.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 41606661 is about 6450.3225500745. The cubic root of 41606661 is about 346.5141347990.

The spelling of 41606661 in words is "forty-one million, six hundred six thousand, six hundred sixty-one".