16193537880 has 128 divisors (see below), whose sum is σ = 52351488000. Its totient is φ = 3983519232.

The previous prime is 16193537879. The next prime is 16193537891. The reversal of 16193537880 is 8873539161.

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, 3740277 + ... + 3744603.

It is an arithmetic number, because the mean of its divisors is an integer number (408996000).

Almost surely, 2^16193537880 is an apocalyptic number.

16193537880 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 16193537880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26175744000).

16193537880 is an abundant number, since it is smaller than the sum of its proper divisors (36157950120).

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

16193537880 is a wasteful number, since it uses less digits than its factorization.

16193537880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6753 (or 6749 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 16193537880 in words is "sixteen billion, one hundred ninety-three million, five hundred thirty-seven thousand, eight hundred eighty".