15551135135 has 16 divisors (see below), whose sum is σ = 19954734912. Its totient is φ = 11593152000.

The previous prime is 15551135111. The next prime is 15551135137. The reversal of 15551135135 is 53153115551.

It is not a de Polignac number, because 15551135135 - 2¹⁰ = 15551134111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15551135095 and 15551135104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15551135137) 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, 897131 + ... + 914300.

It is an arithmetic number, because the mean of its divisors is an integer number (1247170932).

Almost surely, 2^15551135135 is an apocalyptic number.

15551135135 is a deficient number, since it is larger than the sum of its proper divisors (4403599777).

15551135135 is a wasteful number, since it uses less digits than its factorization.

15551135135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811554.

The product of its digits is 28125, while the sum is 35.

The spelling of 15551135135 in words is "fifteen billion, five hundred fifty-one million, one hundred thirty-five thousand, one hundred thirty-five".