16475398897440 has 1152 divisors, whose sum is σ = 65871810144000. Its totient is φ = 3437645266944.

The previous prime is 16475398897429. The next prime is 16475398897483. The reversal of 16475398897440 is 4479889357461.

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, 8721756016 + ... + 8721757904.

It is an arithmetic number, because the mean of its divisors is an integer number (57180390750).

Almost surely, 2^{16475398897440} is an apocalyptic number.

16475398897440 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 16475398897440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32935905072000).

16475398897440 is an abundant number, since it is smaller than the sum of its proper divisors (49396411246560).

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

16475398897440 is a wasteful number, since it uses less digits than its factorization.

16475398897440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2642 (or 2627 counting only the distinct ones).

The product of its (nonzero) digits is 1463132160, while the sum is 75.

The spelling of 16475398897440 in words is "sixteen trillion, four hundred seventy-five billion, three hundred ninety-eight million, eight hundred ninety-seven thousand, four hundred forty".