41540402665 has 8 divisors (see below), whose sum is σ = 49850526600. Its totient is φ = 33230959872.

The previous prime is 41540402653. The next prime is 41540402681. The reversal of 41540402665 is 56620404514.

It can be written as a sum of positive squares in 4 ways, for example, as 62599744 + 41477802921 = 7912^2 + 203661^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 41540402665 - 2⁹ = 41540402153 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24814 + ... + 289303.

It is an arithmetic number, because the mean of its divisors is an integer number (6231315825).

Almost surely, 2^41540402665 is an apocalyptic number.

It is an amenable number.

41540402665 is a deficient number, since it is larger than the sum of its proper divisors (8310123935).

41540402665 is a wasteful number, since it uses less digits than its factorization.

41540402665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340571.

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 41540402665 in words is "forty-one billion, five hundred forty million, four hundred two thousand, six hundred sixty-five".