16661124071635 has 8 divisors (see below), whose sum is σ = 19994263166016. Its totient is φ = 13328289737280.

The previous prime is 16661124071611. The next prime is 16661124071653. The reversal of 16661124071635 is 53617042116661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16661124071635 - 2¹⁹ = 16661123547347 is a prime.

It is a super-2 number, since 2×16661124071635² (a number of 27 digits) contains 22 as substring.

It is a Duffinian 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, 76069714 + ... + 76288423.

It is an arithmetic number, because the mean of its divisors is an integer number (2499282895752).

Almost surely, 2^{16661124071635} is an apocalyptic number.

16661124071635 is a deficient number, since it is larger than the sum of its proper divisors (3333139094381).

16661124071635 is a wasteful number, since it uses less digits than its factorization.

16661124071635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152380013.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 16661124071635 in words is "sixteen trillion, six hundred sixty-one billion, one hundred twenty-four million, seventy-one thousand, six hundred thirty-five".