16122311500 has 24 divisors (see below), whose sum is σ = 35211129408. Its totient is φ = 6448924400.

The previous prime is 16122311497. The next prime is 16122311501. The reversal of 16122311500 is 511322161.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (16122311501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16121812 + ... + 16122811.

It is an arithmetic number, because the mean of its divisors is an integer number (1467130392).

Almost surely, 2^16122311500 is an apocalyptic number.

16122311500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16122311500 is an abundant number, since it is smaller than the sum of its proper divisors (19088817908).

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

16122311500 is a wasteful number, since it uses less digits than its factorization.

16122311500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32244642 (or 32244630 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 16122311500 its reverse (511322161), we get a palindrome (16633633661).

The spelling of 16122311500 in words is "sixteen billion, one hundred twenty-two million, three hundred eleven thousand, five hundred".