8116561767 has 8 divisors (see below), whose sum is σ = 10826461296. Its totient is φ = 5408851712.

The previous prime is 8116561727. The next prime is 8116561811. The reversal of 8116561767 is 7671656118.

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

It is a cyclic number.

It is not a de Polignac number, because 8116561767 - 2⁶ = 8116561703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8116561727) 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, 538698 + ... + 553559.

It is an arithmetic number, because the mean of its divisors is an integer number (1353307662).

Almost surely, 2^8116561767 is an apocalyptic number.

8116561767 is a deficient number, since it is larger than the sum of its proper divisors (2709899529).

8116561767 is a wasteful number, since it uses less digits than its factorization.

8116561767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094737.

The product of its digits is 423360, while the sum is 48.

The square root of 8116561767 is about 90091.9628324303. The cubic root of 8116561767 is about 2009.6666829288. Note that the first 4 decimals are identical.

The spelling of 8116561767 in words is "eight billion, one hundred sixteen million, five hundred sixty-one thousand, seven hundred sixty-seven".