66324945351 has 32 divisors (see below), whose sum is σ = 101703840768. Its totient is φ = 37661230080.

The previous prime is 66324945329. The next prime is 66324945353. The reversal of 66324945351 is 15354942366.

It is not a de Polignac number, because 66324945351 - 2⁹ = 66324944839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66324945351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66324945353) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9649446 + ... + 9656316.

It is an arithmetic number, because the mean of its divisors is an integer number (3178245024).

Almost surely, 2^66324945351 is an apocalyptic number.

66324945351 is a deficient number, since it is larger than the sum of its proper divisors (35378895417).

66324945351 is a wasteful number, since it uses less digits than its factorization.

66324945351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9711.

The product of its digits is 2332800, while the sum is 48.

The spelling of 66324945351 in words is "sixty-six billion, three hundred twenty-four million, nine hundred forty-five thousand, three hundred fifty-one".