75500066 has 16 divisors (see below), whose sum is σ = 118825728. Its totient is φ = 35931600.

The previous prime is 75500059. The next prime is 75500069. The reversal of 75500066 is 66000557.

It is not an unprimeable number, because it can be changed into a prime (75500069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6200 + ... + 13763.

It is an arithmetic number, because the mean of its divisors is an integer number (7426608).

Almost surely, 2^75500066 is an apocalyptic number.

75500066 is a deficient number, since it is larger than the sum of its proper divisors (43325662).

75500066 is a wasteful number, since it uses less digits than its factorization.

75500066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20057.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 75500066 is about 8689.0773963638. The cubic root of 75500066 is about 422.6515283427.

The spelling of 75500066 in words is "seventy-five million, five hundred thousand, sixty-six".