677161657065 has 8 divisors (see below), whose sum is σ = 1083458651328. Its totient is φ = 361152883760.

The previous prime is 677161657049. The next prime is 677161657201. The reversal of 677161657065 is 560756161776.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 677161657065 - 2⁴ = 677161657049 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 677161656996 and 677161657014.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22572055221 + ... + 22572055250.

It is an arithmetic number, because the mean of its divisors is an integer number (135432331416).

Almost surely, 2^677161657065 is an apocalyptic number.

It is an amenable number.

677161657065 is a deficient number, since it is larger than the sum of its proper divisors (406296994263).

677161657065 is a wasteful number, since it uses less digits than its factorization.

677161657065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45144110479.

The product of its (nonzero) digits is 11113200, while the sum is 57.

The spelling of 677161657065 in words is "six hundred seventy-seven billion, one hundred sixty-one million, six hundred fifty-seven thousand, sixty-five".