16104432032400 has 120 divisors (see below), whose sum is σ = 52357832323744. Its totient is φ = 4230417945600.

The previous prime is 16104432032393. The next prime is 16104432032401. The reversal of 16104432032400 is 423023440161.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (16104432032401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100071541 + ... + 100232340.

Almost surely, 2^{16104432032400} is an apocalyptic number.

16104432032400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16104432032400 is an abundant number, since it is smaller than the sum of its proper divisors (36253400291344).

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

16104432032400 is a wasteful number, since it uses less digits than its factorization.

16104432032400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200303969 (or 200303958 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 16104432032400 its reverse (423023440161), we get a palindrome (16527455472561).

The spelling of 16104432032400 in words is "sixteen trillion, one hundred four billion, four hundred thirty-two million, thirty-two thousand, four hundred".