677271736665 has 40 divisors (see below), whose sum is σ = 1214286435648. Its totient is φ = 361147883040.

The previous prime is 677271736649. The next prime is 677271736699. The reversal of 677271736665 is 566637172776.

It is a happy number.

It is not a de Polignac number, because 677271736665 - 2⁴ = 677271736649 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2197530 + ... + 2486700.

Almost surely, 2^677271736665 is an apocalyptic number.

It is an amenable number.

677271736665 is a deficient number, since it is larger than the sum of its proper divisors (537014698983).

677271736665 is a wasteful number, since it uses less digits than its factorization.

677271736665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294971 (or 294962 counting only the distinct ones).

The product of its digits is 93350880, while the sum is 63.

The spelling of 677271736665 in words is "six hundred seventy-seven billion, two hundred seventy-one million, seven hundred thirty-six thousand, six hundred sixty-five".