66325642 has 8 divisors (see below), whose sum is σ = 99749376. Its totient is φ = 33075852.

The previous prime is 66325579. The next prime is 66325643. The reversal of 66325642 is 24652366.

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 = 66325598 and 66325607.

It is not an unprimeable number, because it can be changed into a prime (66325643) 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, 42528 + ... + 44059.

It is an arithmetic number, because the mean of its divisors is an integer number (12468672).

Almost surely, 2^66325642 is an apocalyptic number.

66325642 is a deficient number, since it is larger than the sum of its proper divisors (33423734).

66325642 is a wasteful number, since it uses less digits than its factorization.

66325642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86972.

The product of its digits is 51840, while the sum is 34.

The square root of 66325642 is about 8144.0556235821. The cubic root of 66325642 is about 404.7875571290.

The spelling of 66325642 in words is "sixty-six million, three hundred twenty-five thousand, six hundred forty-two".