66241842 has 16 divisors (see below), whose sum is σ = 132723360. Its totient is φ = 22040672.

The previous prime is 66241831. The next prime is 66241849. The reversal of 66241842 is 24814266.

It is not an unprimeable number, because it can be changed into a prime (66241849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6288 + ... + 13115.

It is an arithmetic number, because the mean of its divisors is an integer number (8295210).

Almost surely, 2^66241842 is an apocalyptic number.

66241842 is an abundant number, since it is smaller than the sum of its proper divisors (66481518).

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

66241842 is a wasteful number, since it uses less digits than its factorization.

66241842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19977.

The product of its digits is 18432, while the sum is 33.

The square root of 66241842 is about 8138.9091406650. The cubic root of 66241842 is about 404.6170072363.

The spelling of 66241842 in words is "sixty-six million, two hundred forty-one thousand, eight hundred forty-two".