66489150 has 96 divisors (see below), whose sum is σ = 202987008. Its totient is φ = 14025600.

The previous prime is 66489133. The next prime is 66489169. The reversal of 66489150 is 5198466.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 66489099 and 66489108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11215 + ... + 16085.

It is an arithmetic number, because the mean of its divisors is an integer number (2114448).

Almost surely, 2^66489150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66489150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101493504).

66489150 is an abundant number, since it is smaller than the sum of its proper divisors (136497858).

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

66489150 is a wasteful number, since it uses less digits than its factorization.

66489150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4906 (or 4901 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 66489150 is about 8154.0879318290. The cubic root of 66489150 is about 405.1199157178.

The spelling of 66489150 in words is "sixty-six million, four hundred eighty-nine thousand, one hundred fifty".