16660371272471 has 8 divisors (see below), whose sum is σ = 16690917795024. Its totient is φ = 16629849699840.

The previous prime is 16660371272453. The next prime is 16660371272483. The reversal of 16660371272471 is 17427217306661.

It is a happy number.

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 16660371272471 - 2⁶ = 16660371272407 is a prime.

It is a super-3 number, since 3×16660371272471³ (a number of 41 digits) contains 333 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 (16660371272411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4900490 + ... + 7572023.

It is an arithmetic number, because the mean of its divisors is an integer number (2086364724378).

Almost surely, 2^{16660371272471} is an apocalyptic number.

16660371272471 is a deficient number, since it is larger than the sum of its proper divisors (30546522553).

16660371272471 is a wasteful number, since it uses less digits than its factorization.

16660371272471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12474961.

The product of its (nonzero) digits is 3556224, while the sum is 53.

The spelling of 16660371272471 in words is "sixteen trillion, six hundred sixty billion, three hundred seventy-one million, two hundred seventy-two thousand, four hundred seventy-one".