276770066 has 4 divisors (see below), whose sum is σ = 415155102. Its totient is φ = 138385032.

The previous prime is 276770051. The next prime is 276770069. The reversal of 276770066 is 660077672.

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., 231678841 + 45091225 = 15221^2 + 6715^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (276770069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69192515 + ... + 69192518.

Almost surely, 2^276770066 is an apocalyptic number.

276770066 is a deficient number, since it is larger than the sum of its proper divisors (138385036).

276770066 is a wasteful number, since it uses less digits than its factorization.

276770066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138385035.

The product of its (nonzero) digits is 148176, while the sum is 41.

The square root of 276770066 is about 16636.4078454455. The cubic root of 276770066 is about 651.6879725055.

The spelling of 276770066 in words is "two hundred seventy-six million, seven hundred seventy thousand, sixty-six".