15530455155 has 16 divisors (see below), whose sum is σ = 25198712064. Its totient is φ = 8166248160.

The previous prime is 15530455151. The next prime is 15530455159. The reversal of 15530455155 is 55155403551.

It is an interprime number because it is at equal distance from previous prime (15530455151) and next prime (15530455159).

It is not a de Polignac number, because 15530455155 - 2² = 15530455151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15530455151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7290229 + ... + 7292358.

It is an arithmetic number, because the mean of its divisors is an integer number (1574919504).

Almost surely, 2^15530455155 is an apocalyptic number.

15530455155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15530455155 is a deficient number, since it is larger than the sum of its proper divisors (9668256909).

15530455155 is a wasteful number, since it uses less digits than its factorization.

15530455155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14582666.

The product of its (nonzero) digits is 187500, while the sum is 39.

The spelling of 15530455155 in words is "fifteen billion, five hundred thirty million, four hundred fifty-five thousand, one hundred fifty-five".