16140528648 has 96 divisors (see below), whose sum is σ = 44939545560. Its totient is φ = 5229619200.

The previous prime is 16140528647. The next prime is 16140528653. The reversal of 16140528648 is 84682504161.

It is a happy number.

16140528648 is a `hidden beast` number, since 1 + 61 + 4 + 0 + 528 + 64 + 8 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 8578834884 + 7561693764 = 92622^2 + 86958^2 .

It is not an unprimeable number, because it can be changed into a prime (16140528647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3463536 + ... + 3468192.

Almost surely, 2^16140528648 is an apocalyptic number.

16140528648 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 16140528648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22469772780).

16140528648 is an abundant number, since it is smaller than the sum of its proper divisors (28799016912).

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

16140528648 is a wasteful number, since it uses less digits than its factorization.

16140528648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6007 (or 6000 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 16140528648 in words is "sixteen billion, one hundred forty million, five hundred twenty-eight thousand, six hundred forty-eight".