16020513140 has 24 divisors (see below), whose sum is σ = 33657974280. Its totient is φ = 6405367808.

The previous prime is 16020513137. The next prime is 16020513151. The reversal of 16020513140 is 4131502061.

It can be written as a sum of positive squares in 4 ways, for example, as 5111964004 + 10908549136 = 71498^2 + 104444^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130745 + ... + 221664.

It is an arithmetic number, because the mean of its divisors is an integer number (1402415595).

Almost surely, 2^16020513140 is an apocalyptic number.

16020513140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16020513140 is an abundant number, since it is smaller than the sum of its proper divisors (17637461140).

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

16020513140 is a wasteful number, since it uses less digits than its factorization.

16020513140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354691 (or 354689 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The spelling of 16020513140 in words is "sixteen billion, twenty million, five hundred thirteen thousand, one hundred forty".