646254561116461 has 8 divisors (see below), whose sum is σ = 705078513478944. Its totient is φ = 587442865039920.

The previous prime is 646254561116401. The next prime is 646254561116467. The reversal of 646254561116461 is 164611165452646.

646254561116461 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 646254561116461 - 2³⁹ = 645704805302573 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 646254561116396 and 646254561116405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646254561116467) 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, 3063961230 + ... + 3064172143.

It is an arithmetic number, because the mean of its divisors is an integer number (88134814184868).

Almost surely, 2^{646254561116461} is an apocalyptic number.

It is an amenable number.

646254561116461 is a deficient number, since it is larger than the sum of its proper divisors (58823952362483).

646254561116461 is a wasteful number, since it uses less digits than its factorization.

646254561116461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6128142971.

The product of its digits is 24883200, while the sum is 58.

The spelling of 646254561116461 in words is "six hundred forty-six trillion, two hundred fifty-four billion, five hundred sixty-one million, one hundred sixteen thousand, four hundred sixty-one".