15130523440 has 20 divisors (see below), whose sum is σ = 35178467184. Its totient is φ = 6052209344.

The previous prime is 15130523417. The next prime is 15130523453. The reversal of 15130523440 is 4432503151.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 15130523399 and 15130523408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94565692 + ... + 94565851.

Almost surely, 2^15130523440 is an apocalyptic number.

15130523440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15130523440 is an abundant number, since it is smaller than the sum of its proper divisors (20047943744).

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

15130523440 is a wasteful number, since it uses less digits than its factorization.

15130523440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189131556 (or 189131550 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The spelling of 15130523440 in words is "fifteen billion, one hundred thirty million, five hundred twenty-three thousand, four hundred forty".