16243401911 has 12 divisors (see below), whose sum is σ = 17896985400. Its totient is φ = 14731440240.

The previous prime is 16243401901. The next prime is 16243401913. The reversal of 16243401911 is 11910434261.

It is a de Polignac number, because none of the positive numbers 2^k-16243401911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16243401913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109496 + ... + 210893.

It is an arithmetic number, because the mean of its divisors is an integer number (1491415450).

Almost surely, 2^16243401911 is an apocalyptic number.

16243401911 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16243401911 is a deficient number, since it is larger than the sum of its proper divisors (1653583489).

16243401911 is a wasteful number, since it uses less digits than its factorization.

16243401911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320830 (or 320819 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The spelling of 16243401911 in words is "sixteen billion, two hundred forty-three million, four hundred one thousand, nine hundred eleven".