66748142 has 8 divisors (see below), whose sum is σ = 100228656. Its totient is φ = 33338592.

The previous prime is 66748141. The next prime is 66748151. The reversal of 66748142 is 24184766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 66748096 and 66748105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66748141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15323 + ... + 19190.

It is an arithmetic number, because the mean of its divisors is an integer number (12528582).

Almost surely, 2^66748142 is an apocalyptic number.

66748142 is a deficient number, since it is larger than the sum of its proper divisors (33480514).

66748142 is a wasteful number, since it uses less digits than its factorization.

66748142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35482.

The product of its digits is 64512, while the sum is 38.

The square root of 66748142 is about 8169.9536106394. The cubic root of 66748142 is about 405.6452489371.

The spelling of 66748142 in words is "sixty-six million, seven hundred forty-eight thousand, one hundred forty-two".