16611634127 has 24 divisors (see below), whose sum is σ = 19486869840. Its totient is φ = 14036555520.

The previous prime is 16611634097. The next prime is 16611634147. The reversal of 16611634127 is 72143611661.

It is a happy number.

It is not a de Polignac number, because 16611634127 - 2¹² = 16611630031 is a prime.

It is a super-2 number, since 2×16611634127² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16611634147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170999 + ... + 249927.

It is an arithmetic number, because the mean of its divisors is an integer number (811952910).

Almost surely, 2^16611634127 is an apocalyptic number.

16611634127 is a deficient number, since it is larger than the sum of its proper divisors (2875235713).

16611634127 is a wasteful number, since it uses less digits than its factorization.

16611634127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79031 (or 79012 counting only the distinct ones).

The product of its digits is 36288, while the sum is 38.

The spelling of 16611634127 in words is "sixteen billion, six hundred eleven million, six hundred thirty-four thousand, one hundred twenty-seven".