16166171491648 has 56 divisors (see below), whose sum is σ = 34106112989568. Its totient is φ = 7585767062016.

The previous prime is 16166171491627. The next prime is 16166171491663. The reversal of 16166171491648 is 84619417166161.

It is a super-3 number, since 3×16166171491648³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103530036 + ... + 103686067.

Almost surely, 2^{16166171491648} is an apocalyptic number.

It is an amenable number.

16166171491648 is an abundant number, since it is smaller than the sum of its proper divisors (17939941497920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16166171491648 is a wasteful number, since it uses less digits than its factorization.

16166171491648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207216191 (or 207216181 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 61.

The spelling of 16166171491648 in words is "sixteen trillion, one hundred sixty-six billion, one hundred seventy-one million, four hundred ninety-one thousand, six hundred forty-eight".