16003423632 has 160 divisors (see below), whose sum is σ = 48876871680. Its totient is φ = 4415431680.

The previous prime is 16003423577. The next prime is 16003423679. The reversal of 16003423632 is 23632430061.

It is a super-2 number, since 2×16003423632² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16003423632.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5862844 + ... + 5865572.

It is an arithmetic number, because the mean of its divisors is an integer number (305480448).

Almost surely, 2^16003423632 is an apocalyptic number.

16003423632 is a gapful number since it is divisible by the number (12) 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 16003423632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24438435840).

16003423632 is an abundant number, since it is smaller than the sum of its proper divisors (32873448048).

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

16003423632 is a wasteful number, since it uses less digits than its factorization.

16003423632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3341 (or 3335 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 16003423632 its reverse (23632430061), we get a palindrome (39635853693).

The spelling of 16003423632 in words is "sixteen billion, three million, four hundred twenty-three thousand, six hundred thirty-two".