16945455004416 has 576 divisors, whose sum is σ = 56051758425600. Its totient is φ = 5018311065600.

The previous prime is 16945455004403. The next prime is 16945455004447. The reversal of 16945455004416 is 61440055454961.

16945455004416 is a `hidden beast` number, since 1 + 6 + 9 + 4 + 545 + 50 + 0 + 4 + 41 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 627340351 + ... + 627367361.

It is an arithmetic number, because the mean of its divisors is an integer number (97312080600).

Almost surely, 2^{16945455004416} is an apocalyptic number.

16945455004416 is a gapful number since it is divisible by the number (16) 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 16945455004416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28025879212800).

16945455004416 is an abundant number, since it is smaller than the sum of its proper divisors (39106303421184).

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

16945455004416 is a wasteful number, since it uses less digits than its factorization.

16945455004416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27353 (or 27333 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 54.

The spelling of 16945455004416 in words is "sixteen trillion, nine hundred forty-five billion, four hundred fifty-five million, four thousand, four hundred sixteen".