16516911677 has 8 divisors (see below), whose sum is σ = 18880430976. Its totient is φ = 14154382512.

The previous prime is 16516911659. The next prime is 16516911707. The reversal of 16516911677 is 77611961561.

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 16516911677 - 2⁸ = 16516911421 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 (16516911617) 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, 211433 + ... + 278814.

It is an arithmetic number, because the mean of its divisors is an integer number (2360053872).

Almost surely, 2^16516911677 is an apocalyptic number.

It is an amenable number.

16516911677 is a deficient number, since it is larger than the sum of its proper divisors (2363519299).

16516911677 is an equidigital number, since it uses as much as digits as its factorization.

16516911677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495067.

The product of its digits is 476280, while the sum is 50.

The spelling of 16516911677 in words is "sixteen billion, five hundred sixteen million, nine hundred eleven thousand, six hundred seventy-seven".