16323123525 has 24 divisors (see below), whose sum is σ = 27115493664. Its totient is φ = 8664398400.

The previous prime is 16323123521. The next prime is 16323123527. The reversal of 16323123525 is 52532132361.

It is not a de Polignac number, because 16323123525 - 2² = 16323123521 is a prime.

It is a super-2 number, since 2×16323123525² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16323123521) 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 23 ways as a sum of consecutive naturals, for example, 499914 + ... + 531563.

It is an arithmetic number, because the mean of its divisors is an integer number (1129812236).

Almost surely, 2^16323123525 is an apocalyptic number.

16323123525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16323123525 is a deficient number, since it is larger than the sum of its proper divisors (10792370139).

16323123525 is a wasteful number, since it uses less digits than its factorization.

16323123525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031701 (or 1031696 counting only the distinct ones).

The product of its digits is 32400, while the sum is 33.

Adding to 16323123525 its reverse (52532132361), we get a palindrome (68855255886).

The spelling of 16323123525 in words is "sixteen billion, three hundred twenty-three million, one hundred twenty-three thousand, five hundred twenty-five".