76066066 has 4 divisors (see below), whose sum is σ = 114099102. Its totient is φ = 38033032.

The previous prime is 76066061. The next prime is 76066079. The reversal of 76066066 is 66066067.

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

It can be written as a sum of positive squares in only one way, i.e., 71318025 + 4748041 = 8445^2 + 2179^2 .

It is not an unprimeable number, because it can be changed into a prime (76066061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19016515 + ... + 19016518.

Almost surely, 2^76066066 is an apocalyptic number.

76066066 is a deficient number, since it is larger than the sum of its proper divisors (38033036).

76066066 is a wasteful number, since it uses less digits than its factorization.

76066066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38033035.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 76066066 is about 8721.5862089416. The cubic root of 76066066 is about 423.7050614393.

Subtracting from 76066066 its reverse (66066067), we obtain a palindrome (9999999).

The spelling of 76066066 in words is "seventy-six million, sixty-six thousand, sixty-six".