677606063165 has 4 divisors (see below), whose sum is σ = 813127275804. Its totient is φ = 542084850528.

The previous prime is 677606063107. The next prime is 677606063201. The reversal of 677606063165 is 561360606776.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 354303514756 + 323302548409 = 595234^2 + 568597^2 .

It is a cyclic number.

It is not a de Polignac number, because 677606063165 - 2¹⁴ = 677606046781 is a prime.

It is a super-3 number, since 3×677606063165³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67760606312 + ... + 67760606321.

It is an arithmetic number, because the mean of its divisors is an integer number (203281818951).

Almost surely, 2^677606063165 is an apocalyptic number.

It is an amenable number.

677606063165 is a deficient number, since it is larger than the sum of its proper divisors (135521212639).

677606063165 is a wasteful number, since it uses less digits than its factorization.

677606063165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135521212638.

The product of its (nonzero) digits is 5715360, while the sum is 53.

The spelling of 677606063165 in words is "six hundred seventy-seven billion, six hundred six million, sixty-three thousand, one hundred sixty-five".