15530240155 has 8 divisors (see below), whose sum is σ = 18638443152. Its totient is φ = 12422755488.

The previous prime is 15530240153. The next prime is 15530240183. The reversal of 15530240155 is 55104203551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15530240155 - 2¹ = 15530240153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15530240153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130812 + ... + 219481.

It is an arithmetic number, because the mean of its divisors is an integer number (2329805394).

Almost surely, 2^15530240155 is an apocalyptic number.

15530240155 is a deficient number, since it is larger than the sum of its proper divisors (3108202997).

15530240155 is an equidigital number, since it uses as much as digits as its factorization.

15530240155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359165.

The product of its (nonzero) digits is 15000, while the sum is 31.

The spelling of 15530240155 in words is "fifteen billion, five hundred thirty million, two hundred forty thousand, one hundred fifty-five".