16599047400 has 576 divisors, whose sum is σ = 62103525120. Its totient is φ = 3948134400.

The previous prime is 16599047389. The next prime is 16599047407. The reversal of 16599047400 is 474099561.

16599047400 is a `hidden beast` number, since 16 + 599 + 0 + 4 + 7 + 40 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (16599047407) 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 143 ways as a sum of consecutive naturals, for example, 161155749 + ... + 161155851.

It is an arithmetic number, because the mean of its divisors is an integer number (107818620).

Almost surely, 2^16599047400 is an apocalyptic number.

16599047400 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 16599047400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31051762560).

16599047400 is an abundant number, since it is smaller than the sum of its proper divisors (45504477720).

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

16599047400 is a wasteful number, since it uses less digits than its factorization.

16599047400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 16599047400 in words is "sixteen billion, five hundred ninety-nine million, forty-seven thousand, four hundred".