16009507800 has 864 divisors, whose sum is σ = 66492775440. Its totient is φ = 3400704000.

The previous prime is 16009507769. The next prime is 16009507819. The reversal of 16009507800 is 870590061.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 390475780 + ... + 390475820.

Almost surely, 2^16009507800 is an apocalyptic number.

16009507800 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 16009507800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33246387720).

16009507800 is an abundant number, since it is smaller than the sum of its proper divisors (50483267640).

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

16009507800 is a wasteful number, since it uses less digits than its factorization.

16009507800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The spelling of 16009507800 in words is "sixteen billion, nine million, five hundred seven thousand, eight hundred".