16473734389440 has 896 divisors, whose sum is σ = 62262300672000. Its totient is φ = 4090418196480.

The previous prime is 16473734389433. The next prime is 16473734389499. The reversal of 16473734389440 is 4498343737461.

16473734389440 is a `hidden beast` number, since 1 + 6 + 4 + 7 + 3 + 73 + 43 + 89 + 440 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2657479461 + ... + 2657485659.

Almost surely, 2^{16473734389440} is an apocalyptic number.

16473734389440 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 16473734389440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31131150336000).

16473734389440 is an abundant number, since it is smaller than the sum of its proper divisors (45788566282560).

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

16473734389440 is a wasteful number, since it uses less digits than its factorization.

16473734389440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6602 (or 6586 counting only the distinct ones).

The product of its (nonzero) digits is 146313216, while the sum is 63.

The spelling of 16473734389440 in words is "sixteen trillion, four hundred seventy-three billion, seven hundred thirty-four million, three hundred eighty-nine thousand, four hundred forty".