1677057666 has 32 divisors (see below), whose sum is σ = 3429243648. Its totient is φ = 546524160.

The previous prime is 1677057661. The next prime is 1677057709. The reversal of 1677057666 is 6667507761.

It is not an unprimeable number, because it can be changed into a prime (1677057661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305506 + ... + 310946.

It is an arithmetic number, because the mean of its divisors is an integer number (107163864).

Almost surely, 2^1677057666 is an apocalyptic number.

1677057666 is an abundant number, since it is smaller than the sum of its proper divisors (1752185982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1677057666 is a wasteful number, since it uses less digits than its factorization.

1677057666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6586.

The product of its (nonzero) digits is 2222640, while the sum is 51.

The square root of 1677057666 is about 40951.8945349296. The cubic root of 1677057666 is about 1188.0899769170.

The spelling of 1677057666 in words is "one billion, six hundred seventy-seven million, fifty-seven thousand, six hundred sixty-six".