16130870440 has 32 divisors (see below), whose sum is σ = 36307197000. Its totient is φ = 6450083584.

The previous prime is 16130870417. The next prime is 16130870447. The reversal of 16130870440 is 4407803161.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15411236164 + 719634276 = 124142^2 + 26826^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16130870396 and 16130870405.

It is not an unprimeable number, because it can be changed into a prime (16130870447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47046 + ... + 185674.

Almost surely, 2^16130870440 is an apocalyptic number.

16130870440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16130870440 is an abundant number, since it is smaller than the sum of its proper divisors (20176326560).

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

16130870440 is a wasteful number, since it uses less digits than its factorization.

16130870440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141549 (or 141545 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The spelling of 16130870440 in words is "sixteen billion, one hundred thirty million, eight hundred seventy thousand, four hundred forty".