16147145448 has 128 divisors (see below), whose sum is σ = 51363936000. Its totient is φ = 4604186880.

The previous prime is 16147145419. The next prime is 16147145503. The reversal of 16147145448 is 84454174161.

16147145448 is a `hidden beast` number, since 1 + 61 + 4 + 7 + 145 + 448 = 666.

16147145448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16147145448² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 759118 + ... + 780098.

It is an arithmetic number, because the mean of its divisors is an integer number (401280750).

Almost surely, 2^16147145448 is an apocalyptic number.

16147145448 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 16147145448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25681968000).

16147145448 is an abundant number, since it is smaller than the sum of its proper divisors (35216790552).

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

16147145448 is a wasteful number, since it uses less digits than its factorization.

16147145448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21512 (or 21502 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The spelling of 16147145448 in words is "sixteen billion, one hundred forty-seven million, one hundred forty-five thousand, four hundred forty-eight".