66543162 has 32 divisors (see below), whose sum is σ = 152440704. Its totient is φ = 18969600.

The previous prime is 66543161. The next prime is 66543167. The reversal of 66543162 is 26134566.

It is not an unprimeable number, because it can be changed into a prime (66543161) 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, 20362 + ... + 23402.

It is an arithmetic number, because the mean of its divisors is an integer number (4763772).

Almost surely, 2^66543162 is an apocalyptic number.

66543162 is an abundant number, since it is smaller than the sum of its proper divisors (85897542).

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

66543162 is a wasteful number, since it uses less digits than its factorization.

66543162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3574.

The product of its digits is 25920, while the sum is 33.

The square root of 66543162 is about 8157.3992178880. The cubic root of 66543162 is about 405.2295848117.

The spelling of 66543162 in words is "sixty-six million, five hundred forty-three thousand, one hundred sixty-two".