16421463470720 has 512 divisors, whose sum is σ = 51216045465600. Its totient is φ = 4882081628160.

The previous prime is 16421463470683. The next prime is 16421463470723. The reversal of 16421463470720 is 2707436412461.

It is not an unprimeable number, because it can be changed into a prime (16421463470723) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 406884782 + ... + 406925138.

It is an arithmetic number, because the mean of its divisors is an integer number (100031338800).

Almost surely, 2^{16421463470720} is an apocalyptic number.

16421463470720 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 16421463470720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25608022732800).

16421463470720 is an abundant number, since it is smaller than the sum of its proper divisors (34794581994880).

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

16421463470720 is a wasteful number, since it uses less digits than its factorization.

16421463470720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40776 (or 40764 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 47.

The spelling of 16421463470720 in words is "sixteen trillion, four hundred twenty-one billion, four hundred sixty-three million, four hundred seventy thousand, seven hundred twenty".