677836066 has 4 divisors (see below), whose sum is σ = 1016754102. Its totient is φ = 338918032.

The previous prime is 677836063. The next prime is 677836127. The reversal of 677836066 is 660638776.

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., 458174025 + 219662041 = 21405^2 + 14821^2 .

It is not an unprimeable number, because it can be changed into a prime (677836063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169459015 + ... + 169459018.

Almost surely, 2^677836066 is an apocalyptic number.

677836066 is a deficient number, since it is larger than the sum of its proper divisors (338918036).

677836066 is a wasteful number, since it uses less digits than its factorization.

677836066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338918035.

The product of its (nonzero) digits is 1524096, while the sum is 49.

The square root of 677836066 is about 26035.2850186050. The cubic root of 677836066 is about 878.4321540815.

The spelling of 677836066 in words is "six hundred seventy-seven million, eight hundred thirty-six thousand, sixty-six".