677166641 has 4 divisors (see below), whose sum is σ = 682335984. Its totient is φ = 671997300.

The previous prime is 677166629. The next prime is 677166643. The reversal of 677166641 is 146661776.

677166641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 677166641 - 2¹⁰ = 677165617 is a prime.

It is a super-3 number, since 3×677166641³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 677166592 and 677166601.

It is not an unprimeable number, because it can be changed into a prime (677166643) 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, 2584475 + ... + 2584736.

It is an arithmetic number, because the mean of its divisors is an integer number (170583996).

Almost surely, 2^677166641 is an apocalyptic number.

It is an amenable number.

677166641 is a deficient number, since it is larger than the sum of its proper divisors (5169343).

677166641 is a wasteful number, since it uses less digits than its factorization.

677166641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5169342.

The product of its digits is 254016, while the sum is 44.

The square root of 677166641 is about 26022.4257324332. The cubic root of 677166641 is about 878.1428815160.

The spelling of 677166641 in words is "six hundred seventy-seven million, one hundred sixty-six thousand, six hundred forty-one".