66325263031139 has 16 divisors (see below), whose sum is σ = 76270965838848. Its totient is φ = 56497877231712.

The previous prime is 66325263031127. The next prime is 66325263031187. The reversal of 66325263031139 is 93113036252366.

It is not a de Polignac number, because 66325263031139 - 2²⁰ = 66325261982563 is a prime.

It is a super-2 number, since 2×66325263031139² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66325263031109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25888799 + ... + 28335144.

It is an arithmetic number, because the mean of its divisors is an integer number (4766935364928).

Almost surely, 2^{66325263031139} is an apocalyptic number.

66325263031139 is a deficient number, since it is larger than the sum of its proper divisors (9945702807709).

66325263031139 is a wasteful number, since it uses less digits than its factorization.

66325263031139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54225034.

The product of its (nonzero) digits is 3149280, while the sum is 50.

The spelling of 66325263031139 in words is "sixty-six trillion, three hundred twenty-five billion, two hundred sixty-three million, thirty-one thousand, one hundred thirty-nine".