15530405342450 has 48 divisors (see below), whose sum is σ = 29009775342600. Its totient is φ = 6185710648320.

The previous prime is 15530405342423. The next prime is 15530405342467. The reversal of 15530405342450 is 5424350403551.

It can be written as a sum of positive squares in 12 ways, for example, as 192318208681 + 15338087133769 = 438541^2 + 3916387^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15530405342398 and 15530405342407.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12428876 + ... + 13621224.

Almost surely, 2^{15530405342450} is an apocalyptic number.

15530405342450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15530405342450 is a deficient number, since it is larger than the sum of its proper divisors (13479370000150).

15530405342450 is a wasteful number, since it uses less digits than its factorization.

15530405342450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193471 (or 1193466 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 41.

The spelling of 15530405342450 in words is "fifteen trillion, five hundred thirty billion, four hundred five million, three hundred forty-two thousand, four hundred fifty".