16397489120 has 48 divisors (see below), whose sum is σ = 39094513920. Its totient is φ = 6498814464.

The previous prime is 16397489113. The next prime is 16397489123. The reversal of 16397489120 is 2198479361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16397489123) by changing a digit.

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, 452672 + ... + 487551.

It is an arithmetic number, because the mean of its divisors is an integer number (814469040).

Almost surely, 2^16397489120 is an apocalyptic number.

16397489120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16397489120 is an abundant number, since it is smaller than the sum of its proper divisors (22697024800).

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

16397489120 is a wasteful number, since it uses less digits than its factorization.

16397489120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940347 (or 940339 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 50.

The spelling of 16397489120 in words is "sixteen billion, three hundred ninety-seven million, four hundred eighty-nine thousand, one hundred twenty".