66426342 has 8 divisors (see below), whose sum is σ = 132852696. Its totient is φ = 22142112.

The previous prime is 66426341. The next prime is 66426343. The reversal of 66426342 is 24362466.

It is an interprime number because it is at equal distance from previous prime (66426341) and next prime (66426343).

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

66426342 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66426341) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5535523 + ... + 5535534.

It is an arithmetic number, because the mean of its divisors is an integer number (16606587).

Almost surely, 2^66426342 is an apocalyptic number.

66426342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66426342 is a wasteful number, since it uses less digits than its factorization.

66426342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11071062.

The product of its digits is 41472, while the sum is 33.

The square root of 66426342 is about 8150.2357021132. The cubic root of 66426342 is about 404.9923120016.

The spelling of 66426342 in words is "sixty-six million, four hundred twenty-six thousand, three hundred forty-two".