66144050 has 24 divisors (see below), whose sum is σ = 140604096. Its totient is φ = 22677840.

The previous prime is 66144037. The next prime is 66144077. The reversal of 66144050 is 5044166.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94142 + ... + 94841.

It is an arithmetic number, because the mean of its divisors is an integer number (5858504).

Almost surely, 2^66144050 is an apocalyptic number.

66144050 is an abundant number, since it is smaller than the sum of its proper divisors (74460046).

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

66144050 is a wasteful number, since it uses less digits than its factorization.

66144050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189002 (or 188997 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 66144050 is about 8132.8992370495. The cubic root of 66144050 is about 404.4177988379.

The spelling of 66144050 in words is "sixty-six million, one hundred forty-four thousand, fifty".