2605016868641 has 8 divisors (see below), whose sum is σ = 2846813537568. Its totient is φ = 2364049692000.

The previous prime is 2605016868637. The next prime is 2605016868659. The reversal of 2605016868641 is 1468686105062.

It is a happy number.

2605016868641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2605016868641 - 2² = 2605016868637 is a prime.

It is a super-2 number, since 2×2605016868641² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2605016868691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207366500 + ... + 207379061.

It is an arithmetic number, because the mean of its divisors is an integer number (355851692196).

Almost surely, 2^{2605016868641} is an apocalyptic number.

It is an amenable number.

2605016868641 is a deficient number, since it is larger than the sum of its proper divisors (241796668927).

2605016868641 is a wasteful number, since it uses less digits than its factorization.

2605016868641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414746143.

The product of its (nonzero) digits is 3317760, while the sum is 53.

The spelling of 2605016868641 in words is "two trillion, six hundred five billion, sixteen million, eight hundred sixty-eight thousand, six hundred forty-one".