66315237522 has 8 divisors (see below), whose sum is σ = 132630475056. Its totient is φ = 22105079172.

The previous prime is 66315237511. The next prime is 66315237533. The reversal of 66315237522 is 22573251366.

It is an interprime number because it is at equal distance from previous prime (66315237511) and next prime (66315237533).

It is a sphenic number, since it is the product of 3 distinct primes.

66315237522 is an admirable number.

It is an unprimeable number.

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, 5526269788 + ... + 5526269799.

It is an arithmetic number, because the mean of its divisors is an integer number (16578809382).

Almost surely, 2^66315237522 is an apocalyptic number.

66315237522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66315237522 is a wasteful number, since it uses less digits than its factorization.

66315237522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11052539592.

The product of its digits is 453600, while the sum is 42.

Adding to 66315237522 its reverse (22573251366), we get a palindrome (88888488888).

The spelling of 66315237522 in words is "sixty-six billion, three hundred fifteen million, two hundred thirty-seven thousand, five hundred twenty-two".