41665216051 has 4 divisors (see below), whose sum is σ = 41820105600. Its totient is φ = 41510326504.

The previous prime is 41665216049. The next prime is 41665216057. The reversal of 41665216051 is 15061256614.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15061256614 = 2 ⋅7530628307.

It is a cyclic number.

It is not a de Polignac number, because 41665216051 - 2¹ = 41665216049 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 41665216051.

It is not an unprimeable number, because it can be changed into a prime (41665216057) 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, 77444371 + ... + 77444908.

It is an arithmetic number, because the mean of its divisors is an integer number (10455026400).

Almost surely, 2^41665216051 is an apocalyptic number.

41665216051 is a deficient number, since it is larger than the sum of its proper divisors (154889549).

41665216051 is a wasteful number, since it uses less digits than its factorization.

41665216051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154889548.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 41665216051 in words is "forty-one billion, six hundred sixty-five million, two hundred sixteen thousand, fifty-one".