16575599040 has 896 divisors, whose sum is σ = 72360787968. Its totient is φ = 3103211520.

The previous prime is 16575599039. The next prime is 16575599081. The reversal of 16575599040 is 4099557561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 45164937 + ... + 45165303.

It is an arithmetic number, because the mean of its divisors is an integer number (80759808).

Almost surely, 2^16575599040 is an apocalyptic number.

16575599040 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 16575599040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36180393984).

16575599040 is an abundant number, since it is smaller than the sum of its proper divisors (55785188928).

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

16575599040 is a wasteful number, since it uses less digits than its factorization.

16575599040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 1701000, while the sum is 51.

The spelling of 16575599040 in words is "sixteen billion, five hundred seventy-five million, five hundred ninety-nine thousand, forty".