16648475040 has 144 divisors (see below), whose sum is σ = 57365013888. Its totient is φ = 4396451328.

The previous prime is 16648475023. The next prime is 16648475059. The reversal of 16648475040 is 4057484661.

16648475040 is a `hidden beast` number, since 1 + 6 + 64 + 84 + 7 + 504 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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 23 ways as a sum of consecutive naturals, for example, 92197 + ... + 204443.

It is an arithmetic number, because the mean of its divisors is an integer number (398368152).

Almost surely, 2^16648475040 is an apocalyptic number.

16648475040 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 16648475040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28682506944).

16648475040 is an abundant number, since it is smaller than the sum of its proper divisors (40716538848).

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

16648475040 is a wasteful number, since it uses less digits than its factorization.

16648475040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112371 (or 112360 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 16648475040 in words is "sixteen billion, six hundred forty-eight million, four hundred seventy-five thousand, forty".