15530455340 has 48 divisors (see below), whose sum is σ = 34082560512. Its totient is φ = 5938597056.

The previous prime is 15530455273. The next prime is 15530455427. The reversal of 15530455340 is 4355403551.

It is a self number, because there is not a number n which added to its sum of digits gives 15530455340.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151694 + ... + 232533.

It is an arithmetic number, because the mean of its divisors is an integer number (710053344).

Almost surely, 2^15530455340 is an apocalyptic number.

15530455340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15530455340 is an abundant number, since it is smaller than the sum of its proper divisors (18552105172).

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

15530455340 is a wasteful number, since it uses less digits than its factorization.

15530455340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384326 (or 384324 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 35.

Adding to 15530455340 its reverse (4355403551), we get a palindrome (19885858891).

The spelling of 15530455340 in words is "fifteen billion, five hundred thirty million, four hundred fifty-five thousand, three hundred forty".