16459901280 has 72 divisors (see below), whose sum is σ = 56169418032. Its totient is φ = 4389306624.

The previous prime is 16459901273. The next prime is 16459901303. The reversal of 16459901280 is 8210995461.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5713804 + ... + 5716683.

It is an arithmetic number, because the mean of its divisors is an integer number (780130806).

Almost surely, 2^16459901280 is an apocalyptic number.

16459901280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16459901280 is an abundant number, since it is smaller than the sum of its proper divisors (39709516752).

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

16459901280 is a wasteful number, since it uses less digits than its factorization.

16459901280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11430508 (or 11430497 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The spelling of 16459901280 in words is "sixteen billion, four hundred fifty-nine million, nine hundred one thousand, two hundred eighty".