66324456402 has 16 divisors (see below), whose sum is σ = 132651793152. Its totient is φ = 22107672080.

The previous prime is 66324456389. The next prime is 66324456427. The reversal of 66324456402 is 20465442366.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283903 + ... + 461789.

It is an arithmetic number, because the mean of its divisors is an integer number (8290737072).

Almost surely, 2^66324456402 is an apocalyptic number.

66324456402 is an abundant number, since it is smaller than the sum of its proper divisors (66327336750).

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

66324456402 is a wasteful number, since it uses less digits than its factorization.

66324456402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240033.

The product of its (nonzero) digits is 829440, while the sum is 42.

Adding to 66324456402 its reverse (20465442366), we get a palindrome (86789898768).

The spelling of 66324456402 in words is "sixty-six billion, three hundred twenty-four million, four hundred fifty-six thousand, four hundred two".