16120530440 has 64 divisors (see below), whose sum is σ = 42882220800. Its totient is φ = 5336448768.

The previous prime is 16120530431. The next prime is 16120530457. The reversal of 16120530440 is 4403502161.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 984524 + ... + 1000763.

It is an arithmetic number, because the mean of its divisors is an integer number (670034700).

Almost surely, 2^16120530440 is an apocalyptic number.

16120530440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16120530440 is an abundant number, since it is smaller than the sum of its proper divisors (26761690360).

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

16120530440 is a wasteful number, since it uses less digits than its factorization.

16120530440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985334 (or 1985330 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The spelling of 16120530440 in words is "sixteen billion, one hundred twenty million, five hundred thirty thousand, four hundred forty".