16871178240 has 540 divisors, whose sum is σ = 68179214376. Its totient is φ = 3848011776.

The previous prime is 16871178239. The next prime is 16871178251. The reversal of 16871178240 is 4287117861.

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 35 ways as a sum of consecutive naturals, for example, 36126487 + ... + 36126953.

Almost surely, 2^16871178240 is an apocalyptic number.

16871178240 is a gapful number since it is divisible by the number (10) 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 16871178240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34089607188).

16871178240 is an abundant number, since it is smaller than the sum of its proper divisors (51308036136).

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

16871178240 is an equidigital number, since it uses as much as digits as its factorization.

16871178240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 45.

The spelling of 16871178240 in words is "sixteen billion, eight hundred seventy-one million, one hundred seventy-eight thousand, two hundred forty".