677566033567 has 4 divisors (see below), whose sum is σ = 677576296800. Its totient is φ = 677555770336.

The previous prime is 677566033523. The next prime is 677566033601. The reversal of 677566033567 is 765330665776.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677566033567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677566133567) 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, 5031943 + ... + 5164840.

It is an arithmetic number, because the mean of its divisors is an integer number (169394074200).

Almost surely, 2^677566033567 is an apocalyptic number.

677566033567 is a deficient number, since it is larger than the sum of its proper divisors (10263233).

677566033567 is a wasteful number, since it uses less digits than its factorization.

677566033567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10263232.

The product of its (nonzero) digits is 100018800, while the sum is 61.

The spelling of 677566033567 in words is "six hundred seventy-seven billion, five hundred sixty-six million, thirty-three thousand, five hundred sixty-seven".