461578162056 has 64 divisors (see below), whose sum is σ = 1259699454720. Its totient is φ = 139777734720.

The previous prime is 461578162051. The next prime is 461578162127. The reversal of 461578162056 is 650261875164.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (461578162051) 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, 197970 + ... + 980993.

It is an arithmetic number, because the mean of its divisors is an integer number (19682803980).

Almost surely, 2^461578162056 is an apocalyptic number.

It is an amenable number.

461578162056 is an abundant number, since it is smaller than the sum of its proper divisors (798121292664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

461578162056 is a wasteful number, since it uses less digits than its factorization.

461578162056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180466 (or 1180462 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 461578162056 in words is "four hundred sixty-one billion, five hundred seventy-eight million, one hundred sixty-two thousand, fifty-six".