461650056165 has 24 divisors (see below), whose sum is σ = 821820283128. Its totient is φ = 239558947200.

The previous prime is 461650056149. The next prime is 461650056167. The reversal of 461650056165 is 561650056164.

It can be written as a sum of positive squares in 4 ways, for example, as 144291340449 + 317358715716 = 379857^2 + 563346^2 .

It is not a de Polignac number, because 461650056165 - 2⁴ = 461650056149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 461650056165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461650056167) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138631986 + ... + 138635315.

It is an arithmetic number, because the mean of its divisors is an integer number (34242511797).

Almost surely, 2^461650056165 is an apocalyptic number.

461650056165 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

461650056165 is a deficient number, since it is larger than the sum of its proper divisors (360170226963).

461650056165 is a wasteful number, since it uses less digits than its factorization.

461650056165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277267349 (or 277267346 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

Subtracting 461650056165 from its reverse (561650056164), we obtain a palindrome (99999999999).

The spelling of 461650056165 in words is "four hundred sixty-one billion, six hundred fifty million, fifty-six thousand, one hundred sixty-five".