16432187500 has 48 divisors (see below), whose sum is σ = 35946001728. Its totient is φ = 6572750000.

The previous prime is 16432187479. The next prime is 16432187521. The reversal of 16432187500 is 578123461.

It is an interprime number because it is at equal distance from previous prime (16432187479) and next prime (16432187521).

It is a self number, because there is not a number n which added to its sum of digits gives 16432187500.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 286209 + ... + 338791.

It is an arithmetic number, because the mean of its divisors is an integer number (748875036).

Almost surely, 2^16432187500 is an apocalyptic number.

16432187500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16432187500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17973000864).

16432187500 is an abundant number, since it is smaller than the sum of its proper divisors (19513814228).

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

16432187500 is an frugal number, since it uses more digits than its factorization.

16432187500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52622 (or 52590 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 16432187500 in words is "sixteen billion, four hundred thirty-two million, one hundred eighty-seven thousand, five hundred".