1171216677 has 8 divisors (see below), whose sum is σ = 1643812960. Its totient is φ = 739715760.

The previous prime is 1171216661. The next prime is 1171216679. The reversal of 1171216677 is 7766121711.

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

It is not a de Polignac number, because 1171216677 - 2⁴ = 1171216661 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 (1171216679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10273774 + ... + 10273887.

It is an arithmetic number, because the mean of its divisors is an integer number (205476620).

Almost surely, 2^1171216677 is an apocalyptic number.

It is an amenable number.

1171216677 is a deficient number, since it is larger than the sum of its proper divisors (472596283).

1171216677 is a wasteful number, since it uses less digits than its factorization.

1171216677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20547683.

The product of its digits is 24696, while the sum is 39.

The square root of 1171216677 is about 34223.0430704226. The cubic root of 1171216677 is about 1054.0933720257.

The spelling of 1171216677 in words is "one billion, one hundred seventy-one million, two hundred sixteen thousand, six hundred seventy-seven".