664546050 has 72 divisors (see below), whose sum is σ = 2040482496. Its totient is φ = 151895520.

The previous prime is 664546027. The next prime is 664546067. The reversal of 664546050 is 50645466.

It is a happy number.

664546050 is a `hidden beast` number, since 6 + 6 + 45 + 4 + 605 + 0 = 666.

It is a super-3 number, since 3×664546050³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 664545996 and 664546014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 102334 + ... + 108633.

Almost surely, 2^664546050 is an apocalyptic number.

664546050 is an abundant number, since it is smaller than the sum of its proper divisors (1375936446).

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

664546050 is a wasteful number, since it uses less digits than its factorization.

664546050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210992 (or 210984 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 664546050 is about 25778.7907008843. The cubic root of 664546050 is about 872.6532162243.

The spelling of 664546050 in words is "six hundred sixty-four million, five hundred forty-six thousand, fifty".