16243011656 has 32 divisors (see below), whose sum is σ = 31208194080. Its totient is φ = 7920950400.

The previous prime is 16243011647. The next prime is 16243011691. The reversal of 16243011656 is 65611034261.

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, 1485971 + ... + 1496861.

It is an arithmetic number, because the mean of its divisors is an integer number (975256065).

Almost surely, 2^16243011656 is an apocalyptic number.

It is an amenable number.

16243011656 is a deficient number, since it is larger than the sum of its proper divisors (14965182424).

16243011656 is a wasteful number, since it uses less digits than its factorization.

16243011656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15485 (or 15481 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 16243011656 in words is "sixteen billion, two hundred forty-three million, eleven thousand, six hundred fifty-six".