66125343 has 4 divisors (see below), whose sum is σ = 88167128. Its totient is φ = 44083560.

The previous prime is 66125317. The next prime is 66125363. The reversal of 66125343 is 34352166.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 66125343 - 2¹⁰ = 66124319 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 66125343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66125303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11020888 + ... + 11020893.

It is an arithmetic number, because the mean of its divisors is an integer number (22041782).

Almost surely, 2^66125343 is an apocalyptic number.

66125343 is a deficient number, since it is larger than the sum of its proper divisors (22041785).

66125343 is a wasteful number, since it uses less digits than its factorization.

66125343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22041784.

The product of its digits is 12960, while the sum is 30.

The square root of 66125343 is about 8131.7490738463. The cubic root of 66125343 is about 404.3796691442.

The spelling of 66125343 in words is "sixty-six million, one hundred twenty-five thousand, three hundred forty-three".