66310842 has 16 divisors (see below), whose sum is σ = 142823520. Its totient is φ = 20403312.

The previous prime is 66310837. The next prime is 66310861. The reversal of 66310842 is 24801366.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 424992 + ... + 425147.

It is an arithmetic number, because the mean of its divisors is an integer number (8926470).

Almost surely, 2^66310842 is an apocalyptic number.

66310842 is an abundant number, since it is smaller than the sum of its proper divisors (76512678).

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

66310842 is a wasteful number, since it uses less digits than its factorization.

66310842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850157.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 66310842 is about 8143.1469346930. The cubic root of 66310842 is about 404.7574465949.

The spelling of 66310842 in words is "sixty-six million, three hundred ten thousand, eight hundred forty-two".