16881117024 has 48 divisors (see below), whose sum is σ = 44319780288. Its totient is φ = 5626169472.

The previous prime is 16881117023. The next prime is 16881117047. The reversal of 16881117024 is 42071118861.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×16881117024² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16881117023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1011919 + ... + 1028465.

It is an arithmetic number, because the mean of its divisors is an integer number (923328756).

Almost surely, 2^16881117024 is an apocalyptic number.

It is an amenable number.

16881117024 is an abundant number, since it is smaller than the sum of its proper divisors (27438663264).

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

16881117024 is a wasteful number, since it uses less digits than its factorization.

16881117024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27187 (or 27179 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 39.

The spelling of 16881117024 in words is "sixteen billion, eight hundred eighty-one million, one hundred seventeen thousand, twenty-four".