16449270072 has 64 divisors (see below), whose sum is σ = 41619484800. Its totient is φ = 5417193600.

The previous prime is 16449270049. The next prime is 16449270073. The reversal of 16449270072 is 27007294461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16449270073) 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 15 ways as a sum of consecutive naturals, for example, 964822 + ... + 981722.

It is an arithmetic number, because the mean of its divisors is an integer number (650304450).

Almost surely, 2^16449270072 is an apocalyptic number.

16449270072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16449270072 is an abundant number, since it is smaller than the sum of its proper divisors (25170214728).

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

16449270072 is a wasteful number, since it uses less digits than its factorization.

16449270072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17396 (or 17392 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The spelling of 16449270072 in words is "sixteen billion, four hundred forty-nine million, two hundred seventy thousand, seventy-two".