66451002 has 32 divisors (see below), whose sum is σ = 140769792. Its totient is φ = 20868144.

The previous prime is 66450983. The next prime is 66451009. The reversal of 66451002 is 20015466.

It is not an unprimeable number, because it can be changed into a prime (66451009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5653 + ... + 12839.

It is an arithmetic number, because the mean of its divisors is an integer number (4399056).

Almost surely, 2^66451002 is an apocalyptic number.

66451002 is an abundant number, since it is smaller than the sum of its proper divisors (74318790).

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

66451002 is a wasteful number, since it uses less digits than its factorization.

66451002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7282.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 66451002 is about 8151.7484014167. The cubic root of 66451002 is about 405.0424220157.

Adding to 66451002 its reverse (20015466), we get a palindrome (86466468).

The spelling of 66451002 in words is "sixty-six million, four hundred fifty-one thousand, two".