16306472448 has 640 divisors, whose sum is σ = 59579520000. Its totient is φ = 4389396480.

The previous prime is 16306472443. The next prime is 16306472477. The reversal of 16306472448 is 84427460361.

16306472448 is a `hidden beast` number, since 1 + 630 + 6 + 4 + 7 + 2 + 4 + 4 + 8 = 666.

It is a super-2 number, since 2×16306472448² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16306472443) 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, 90090918 + ... + 90091098.

It is an arithmetic number, because the mean of its divisors is an integer number (93093000).

Almost surely, 2^16306472448 is an apocalyptic number.

16306472448 is a gapful number since it is divisible by the number (18) 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 16306472448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29789760000).

16306472448 is an abundant number, since it is smaller than the sum of its proper divisors (43273047552).

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

16306472448 is an equidigital number, since it uses as much as digits as its factorization.

16306472448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The spelling of 16306472448 in words is "sixteen billion, three hundred six million, four hundred seventy-two thousand, four hundred forty-eight".