761066066 has 4 divisors (see below), whose sum is σ = 1141599102. Its totient is φ = 380533032.

The previous prime is 761066057. The next prime is 761066083. The reversal of 761066066 is 660660167.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 660660167 = 22343 ⋅29569.

It can be written as a sum of positive squares in only one way, i.e., 722265625 + 38800441 = 26875^2 + 6229^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190266515 + ... + 190266518.

Almost surely, 2^761066066 is an apocalyptic number.

761066066 is a deficient number, since it is larger than the sum of its proper divisors (380533036).

761066066 is a wasteful number, since it uses less digits than its factorization.

761066066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380533035.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 761066066 is about 27587.4258675941. The cubic root of 761066066 is about 913.0070255591.

The spelling of 761066066 in words is "seven hundred sixty-one million, sixty-six thousand, sixty-six".