16187066693 has 16 divisors (see below), whose sum is σ = 19018446720. Its totient is φ = 13486170816.

The previous prime is 16187066657. The next prime is 16187066699. The reversal of 16187066693 is 39666078161.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16187066693 is a prime.

It is a super-2 number, since 2×16187066693² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16187066699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233255 + ... + 294587.

It is an arithmetic number, because the mean of its divisors is an integer number (1188652920).

Almost surely, 2^16187066693 is an apocalyptic number.

It is an amenable number.

16187066693 is a deficient number, since it is larger than the sum of its proper divisors (2831380027).

16187066693 is a wasteful number, since it uses less digits than its factorization.

16187066693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62396.

The product of its (nonzero) digits is 1959552, while the sum is 53.

The spelling of 16187066693 in words is "sixteen billion, one hundred eighty-seven million, sixty-six thousand, six hundred ninety-three".