16199739887 has 8 divisors (see below), whose sum is σ = 16794797040. Its totient is φ = 15614203840.

The previous prime is 16199739877. The next prime is 16199739923. The reversal of 16199739887 is 78893799161.

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

It is not a de Polignac number, because 16199739887 - 2⁶ = 16199739823 is a prime.

It is a super-3 number, since 3×16199739887³ (a number of 32 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 (16199739817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2376812 + ... + 2383617.

It is an arithmetic number, because the mean of its divisors is an integer number (2099349630).

Almost surely, 2^16199739887 is an apocalyptic number.

16199739887 is a deficient number, since it is larger than the sum of its proper divisors (595057153).

16199739887 is an equidigital number, since it uses as much as digits as its factorization.

16199739887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4760553.

The product of its digits is 41150592, while the sum is 68.

The spelling of 16199739887 in words is "sixteen billion, one hundred ninety-nine million, seven hundred thirty-nine thousand, eight hundred eighty-seven".