16881255072 has 144 divisors (see below), whose sum is σ = 52510768128. Its totient is φ = 5101808640.

The previous prime is 16881255023. The next prime is 16881255103. The reversal of 16881255072 is 27055218861.

16881255072 is a `hidden beast` number, since 1 + 6 + 88 + 12 + 550 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1206388 + ... + 1220300.

It is an arithmetic number, because the mean of its divisors is an integer number (364658112).

Almost surely, 2^16881255072 is an apocalyptic number.

16881255072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16881255072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26255384064).

16881255072 is an abundant number, since it is smaller than the sum of its proper divisors (35629513056).

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

16881255072 is a wasteful number, since it uses less digits than its factorization.

16881255072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14323 (or 14312 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 45.

It can be divided in two parts, 16881 and 255072, that added together give a triangular number (271953 = T₇₃₇).

The spelling of 16881255072 in words is "sixteen billion, eight hundred eighty-one million, two hundred fifty-five thousand, seventy-two".