16992037440 has 1344 divisors, whose sum is σ = 76686704640. Its totient is φ = 3493601280.

The previous prime is 16992037369. The next prime is 16992037481. The reversal of 16992037440 is 4473029961.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (1344).

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

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 320604454 + ... + 320604506.

It is an arithmetic number, because the mean of its divisors is an integer number (57058560).

Almost surely, 2^16992037440 is an apocalyptic number.

16992037440 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 16992037440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38343352320).

16992037440 is an abundant number, since it is smaller than the sum of its proper divisors (59694667200).

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

16992037440 is a wasteful number, since it uses less digits than its factorization.

16992037440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 16992037440 in words is "sixteen billion, nine hundred ninety-two million, thirty-seven thousand, four hundred forty".