16387671996 has 18 divisors (see below), whose sum is σ = 41424393192. Its totient is φ = 5462557320.

The previous prime is 16387671983. The next prime is 16387672001. The reversal of 16387671996 is 69917678361.

16387671996 is a `hidden beast` number, since 1 + 6 + 387 + 67 + 199 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 227606520 + ... + 227606591.

Almost surely, 2^16387671996 is an apocalyptic number.

It is an amenable number.

16387671996 is an abundant number, since it is smaller than the sum of its proper divisors (25036721196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16387671996 is a wasteful number, since it uses less digits than its factorization.

16387671996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455213121 (or 455213116 counting only the distinct ones).

The product of its digits is 20575296, while the sum is 63.

The spelling of 16387671996 in words is "sixteen billion, three hundred eighty-seven million, six hundred seventy-one thousand, nine hundred ninety-six".