66151375 has 16 divisors (see below), whose sum is σ = 84794112. Its totient is φ = 51487200.

The previous prime is 66151373. The next prime is 66151387. The reversal of 66151375 is 57315166.

It is not a de Polignac number, because 66151375 - 2¹ = 66151373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66151375.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66151373) 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 15 ways as a sum of consecutive naturals, for example, 2527 + ... + 11776.

It is an arithmetic number, because the mean of its divisors is an integer number (5299632).

Almost surely, 2^66151375 is an apocalyptic number.

66151375 is a deficient number, since it is larger than the sum of its proper divisors (18642737).

66151375 is a wasteful number, since it uses less digits than its factorization.

66151375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14355 (or 14345 counting only the distinct ones).

The product of its digits is 18900, while the sum is 34.

The square root of 66151375 is about 8133.3495559948. The cubic root of 66151375 is about 404.4327271195.

The spelling of 66151375 in words is "sixty-six million, one hundred fifty-one thousand, three hundred seventy-five".