41621550665 has 16 divisors (see below), whose sum is σ = 51715860480. Its totient is φ = 32119362240.

The previous prime is 41621550599. The next prime is 41621550667. The reversal of 41621550665 is 56605512614.

41621550665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 41621550665 - 2²⁰ = 41620502089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (41621550667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25580 + ... + 289650.

It is an arithmetic number, because the mean of its divisors is an integer number (3232241280).

Almost surely, 2^41621550665 is an apocalyptic number.

It is an amenable number.

41621550665 is a deficient number, since it is larger than the sum of its proper divisors (10094309815).

41621550665 is a wasteful number, since it uses less digits than its factorization.

41621550665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265192.

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 41621550665 in words is "forty-one billion, six hundred twenty-one million, five hundred fifty thousand, six hundred sixty-five".