16464469420 has 144 divisors (see below), whose sum is σ = 42190630272. Its totient is φ = 5374978560.

The previous prime is 16464469409. The next prime is 16464469423. The reversal of 16464469420 is 2496446461.

It is not an unprimeable number, because it can be changed into a prime (16464469423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1699390 + ... + 1709050.

It is an arithmetic number, because the mean of its divisors is an integer number (292990488).

Almost surely, 2^16464469420 is an apocalyptic number.

16464469420 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 16464469420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21095315136).

16464469420 is an abundant number, since it is smaller than the sum of its proper divisors (25726160852).

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

16464469420 is a wasteful number, since it uses less digits than its factorization.

16464469420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9768 (or 9759 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 46.

The spelling of 16464469420 in words is "sixteen billion, four hundred sixty-four million, four hundred sixty-nine thousand, four hundred twenty".