677161667 has 16 divisors (see below), whose sum is σ = 837403392. Its totient is φ = 533221920.

The previous prime is 677161649. The next prime is 677161673. The reversal of 677161667 is 766161776.

It is a happy number.

It is not a de Polignac number, because 677161667 - 2⁶ = 677161603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (677161627) 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, 1568 + ... + 36834.

It is an arithmetic number, because the mean of its divisors is an integer number (52337712).

Almost surely, 2^677161667 is an apocalyptic number.

677161667 is a deficient number, since it is larger than the sum of its proper divisors (160241725).

677161667 is a wasteful number, since it uses less digits than its factorization.

677161667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35498.

The product of its digits is 444528, while the sum is 47.

The square root of 677161667 is about 26022.3301608446. The cubic root of 677161667 is about 878.1407314330.

The spelling of 677161667 in words is "six hundred seventy-seven million, one hundred sixty-one thousand, six hundred sixty-seven".