16237115440 has 160 divisors (see below), whose sum is σ = 46527022080. Its totient is φ = 5131717632.

The previous prime is 16237115387. The next prime is 16237115509. The reversal of 16237115440 is 4451173261.

It is a junction number, because it is equal to n+sod(n) for n = 16237115396 and 16237115405.

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, 8640421 + ... + 8642299.

It is an arithmetic number, because the mean of its divisors is an integer number (290793888).

Almost surely, 2^16237115440 is an apocalyptic number.

16237115440 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 16237115440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23263511040).

16237115440 is an abundant number, since it is smaller than the sum of its proper divisors (30289906640).

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

16237115440 is a wasteful number, since it uses less digits than its factorization.

16237115440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3099 (or 3093 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 16237115440 in words is "sixteen billion, two hundred thirty-seven million, one hundred fifteen thousand, four hundred forty".