75165066 has 12 divisors (see below), whose sum is σ = 162857682. Its totient is φ = 25055016.

The previous prime is 75165053. The next prime is 75165067. The reversal of 75165066 is 66056157.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 73462041 + 1703025 = 8571^2 + 1305^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 75165066.

It is not an unprimeable number, because it can be changed into a prime (75165067) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2087901 + ... + 2087936.

Almost surely, 2^75165066 is an apocalyptic number.

75165066 is an abundant number, since it is smaller than the sum of its proper divisors (87692616).

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

75165066 is a wasteful number, since it uses less digits than its factorization.

75165066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4175845 (or 4175842 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 75165066 is about 8669.7788899141. The cubic root of 75165066 is about 422.0254883042.

The spelling of 75165066 in words is "seventy-five million, one hundred sixty-five thousand, sixty-six".