16671158479089 has 9 divisors (see below), whose sum is σ = 24080579940729. Its totient is φ = 11114097486660.

The previous prime is 16671158479051. The next prime is 16671158479093. The reversal of 16671158479089 is 98097485117661.

The square root of 16671158479089 is 4083033.

It is a perfect power (a square), and thus also a powerful number.

16671158479089 is a `hidden beast` number, since 1 + 6 + 6 + 71 + 1 + 5 + 8 + 479 + 0 + 89 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 16671158479089 - 2³⁵ = 16636798740721 is a prime.

It is a super-3 number, since 3×16671158479089³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (16671153479089) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 11568594 + ... + 12929604.

Almost surely, 2^{16671158479089} is an apocalyptic number.

16671158479089 is the 4083033-rd square number.

16671158479089 is the 2041517-th centered octagonal number.

It is an amenable number.

16671158479089 is a deficient number, since it is larger than the sum of its proper divisors (7409421461640).

16671158479089 is an frugal number, since it uses more digits than its factorization.

16671158479089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2722028 (or 1361014 counting only the distinct ones).

The product of its (nonzero) digits is 182891520, while the sum is 72.

The spelling of 16671158479089 in words is "sixteen trillion, six hundred seventy-one billion, one hundred fifty-eight million, four hundred seventy-nine thousand, eighty-nine".