16504026240 has 384 divisors, whose sum is σ = 59985057600. Its totient is φ = 3847274496.

The previous prime is 16504026229. The next prime is 16504026247. The reversal of 16504026240 is 4262040561.

It is a tau number, because it is divible by the number of its divisors (384).

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

It is a junction number, because it is equal to n+sod(n) for n = 16504026198 and 16504026207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16504026247) 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 47 ways as a sum of consecutive naturals, for example, 6163782 + ... + 6166458.

Almost surely, 2^16504026240 is an apocalyptic number.

16504026240 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 16504026240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29992528800).

16504026240 is an abundant number, since it is smaller than the sum of its proper divisors (43481031360).

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

16504026240 is a wasteful number, since it uses less digits than its factorization.

16504026240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2744 (or 2719 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 16504026240 in words is "sixteen billion, five hundred four million, twenty-six thousand, two hundred forty".