677608166 has 8 divisors (see below), whose sum is σ = 1020890520. Its totient is φ = 337311328.

The previous prime is 677608163. The next prime is 677608207. The reversal of 677608166 is 661806776.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×677608166³ (a number of 27 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 677608166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677608163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 745811 + ... + 746718.

It is an arithmetic number, because the mean of its divisors is an integer number (127611315).

Almost surely, 2^677608166 is an apocalyptic number.

677608166 is a deficient number, since it is larger than the sum of its proper divisors (343282354).

677608166 is a wasteful number, since it uses less digits than its factorization.

677608166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492758.

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 677608166 is about 26030.9078981122. The cubic root of 677608166 is about 878.3336951087. Note that the first 3 decimals are identical.

The spelling of 677608166 in words is "six hundred seventy-seven million, six hundred eight thousand, one hundred sixty-six".