16416503423111 has 4 divisors (see below), whose sum is σ = 17908912825224. Its totient is φ = 14924094021000.

The previous prime is 16416503423077. The next prime is 16416503423113. The reversal of 16416503423111 is 11132430561461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16416503423111 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 (16416503423113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 746204701040 + ... + 746204701061.

It is an arithmetic number, because the mean of its divisors is an integer number (4477228206306).

Almost surely, 2^{16416503423111} is an apocalyptic number.

16416503423111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16416503423111 is a deficient number, since it is larger than the sum of its proper divisors (1492409402113).

16416503423111 is a wasteful number, since it uses less digits than its factorization.

16416503423111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492409402112.

The product of its (nonzero) digits is 51840, while the sum is 38.

Adding to 16416503423111 its reverse (11132430561461), we get a palindrome (27548933984572).

The spelling of 16416503423111 in words is "sixteen trillion, four hundred sixteen billion, five hundred three million, four hundred twenty-three thousand, one hundred eleven".