45664452321 has 4 divisors (see below), whose sum is σ = 60885936432. Its totient is φ = 30442968212.

The previous prime is 45664452311. The next prime is 45664452329. The reversal of 45664452321 is 12325446654.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45664452321 - 2¹³ = 45664444129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45664452329) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7610742051 + ... + 7610742056.

It is an arithmetic number, because the mean of its divisors is an integer number (15221484108).

Almost surely, 2^45664452321 is an apocalyptic number.

It is an amenable number.

45664452321 is a deficient number, since it is larger than the sum of its proper divisors (15221484111).

45664452321 is a wasteful number, since it uses less digits than its factorization.

45664452321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15221484110.

The product of its digits is 691200, while the sum is 42.

Adding to 45664452321 its reverse (12325446654), we get a palindrome (57989898975).

The spelling of 45664452321 in words is "forty-five billion, six hundred sixty-four million, four hundred fifty-two thousand, three hundred twenty-one".