66031189497352 has 16 divisors (see below), whose sum is σ = 124965568910160. Its totient is φ = 32707037787984.

The previous prime is 66031189497269. The next prime is 66031189497353. The reversal of 66031189497352 is 25379498113066.

It is not an unprimeable number, because it can be changed into a prime (66031189497353) 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, 38569619178 + ... + 38569620889.

It is an arithmetic number, because the mean of its divisors is an integer number (7810348056885).

It is a 1-persistent number, because it is pandigital, but 2⋅66031189497352 = 132062378994704 is not.

Almost surely, 2^{66031189497352} is an apocalyptic number.

It is an amenable number.

66031189497352 is a deficient number, since it is larger than the sum of its proper divisors (58934379412808).

66031189497352 is a wasteful number, since it uses less digits than its factorization.

66031189497352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77139240180 (or 77139240176 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 64.

The spelling of 66031189497352 in words is "sixty-six trillion, thirty-one billion, one hundred eighty-nine million, four hundred ninety-seven thousand, three hundred fifty-two".