16166727508 has 12 divisors (see below), whose sum is σ = 29521850400. Its totient is φ = 7731913112.

The previous prime is 16166727481. The next prime is 16166727557. The reversal of 16166727508 is 80572766161.

It is a happy number.

It is a super-2 number, since 2×16166727508² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87862558 + ... + 87862741.

It is an arithmetic number, because the mean of its divisors is an integer number (2460154200).

Almost surely, 2^16166727508 is an apocalyptic number.

It is an amenable number.

16166727508 is a deficient number, since it is larger than the sum of its proper divisors (13355122892).

16166727508 is a wasteful number, since it uses less digits than its factorization.

16166727508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175725326 (or 175725324 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 16166727508 in words is "sixteen billion, one hundred sixty-six million, seven hundred twenty-seven thousand, five hundred eight".