16469381376 has 378 divisors, whose sum is σ = 57368131422. Its totient is φ = 4702924800.

The previous prime is 16469381339. The next prime is 16469381443. The reversal of 16469381376 is 67318396461.

It is a happy number.

16469381376 is a `hidden beast` number, since 16 + 469 + 38 + 137 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11202105600 + 5267275776 = 105840^2 + 72576^2 .

It is a tau number, because it is divible by the number of its divisors (378).

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

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 9143676 + ... + 9145476.

Almost surely, 2^16469381376 is an apocalyptic number.

16469381376 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 16469381376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28684065711).

16469381376 is an abundant number, since it is smaller than the sum of its proper divisors (40898750046).

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

16469381376 is an frugal number, since it uses more digits than its factorization.

16469381376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849 (or 1813 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The spelling of 16469381376 in words is "sixteen billion, four hundred sixty-nine million, three hundred eighty-one thousand, three hundred seventy-six".