16006491860 has 96 divisors (see below), whose sum is σ = 35923789440. Its totient is φ = 5973516288.

The previous prime is 16006491829. The next prime is 16006491877. The reversal of 16006491860 is 6819460061.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8366264 + ... + 8368176.

It is an arithmetic number, because the mean of its divisors is an integer number (374206140).

Almost surely, 2^16006491860 is an apocalyptic number.

16006491860 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 16006491860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17961894720).

16006491860 is an abundant number, since it is smaller than the sum of its proper divisors (19917297580).

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

16006491860 is a wasteful number, since it uses less digits than its factorization.

16006491860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2265 (or 2263 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 16006491860 in words is "sixteen billion, six million, four hundred ninety-one thousand, eight hundred sixty".