461666550 has 48 divisors (see below), whose sum is σ = 1146511440. Its totient is φ = 122941440.

The previous prime is 461666537. The next prime is 461666551. The reversal of 461666550 is 55666164.

It is a junction number, because it is equal to n+sod(n) for n = 461666499 and 461666508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461666551) 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, 137694 + ... + 141006.

It is an arithmetic number, because the mean of its divisors is an integer number (23885655).

Almost surely, 2^461666550 is an apocalyptic number.

461666550 is an abundant number, since it is smaller than the sum of its proper divisors (684844890).

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

461666550 is a wasteful number, since it uses less digits than its factorization.

461666550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4257 (or 4252 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 461666550 is about 21486.4271110857. The cubic root of 461666550 is about 772.8753739618.

The spelling of 461666550 in words is "four hundred sixty-one million, six hundred sixty-six thousand, five hundred fifty".