16881891210 has 320 divisors, whose sum is σ = 51247468800. Its totient is φ = 3966133248.

The previous prime is 16881891199. The next prime is 16881891211. The reversal of 16881891210 is 1219818861.

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

It is not an unprimeable number, because it can be changed into a prime (16881891211) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 13096246 + ... + 13097534.

It is an arithmetic number, because the mean of its divisors is an integer number (160148340).

Almost surely, 2^16881891210 is an apocalyptic number.

16881891210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16881891210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25623734400).

16881891210 is an abundant number, since it is smaller than the sum of its proper divisors (34365577590).

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

16881891210 is a wasteful number, since it uses less digits than its factorization.

16881891210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387 (or 1378 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 45.

The spelling of 16881891210 in words is "sixteen billion, eight hundred eighty-one million, eight hundred ninety-one thousand, two hundred ten".