16293887956 has 12 divisors (see below), whose sum is σ = 28561283968. Its totient is φ = 8133521112.

The previous prime is 16293887933. The next prime is 16293887963. The reversal of 16293887956 is 65978839261.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3352986 + ... + 3357841.

Almost surely, 2^16293887956 is an apocalyptic number.

It is an amenable number.

16293887956 is a deficient number, since it is larger than the sum of its proper divisors (12267396012).

16293887956 is a wasteful number, since it uses less digits than its factorization.

16293887956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6711438 (or 6711436 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 64.

The spelling of 16293887956 in words is "sixteen billion, two hundred ninety-three million, eight hundred eighty-seven thousand, nine hundred fifty-six".