10531500155 has 16 divisors (see below), whose sum is σ = 13788684000. Its totient is φ = 7658165760.

The previous prime is 10531500149. The next prime is 10531500157. The reversal of 10531500155 is 55100513501.

It is not a de Polignac number, because 10531500155 - 2¹⁰ = 10531499131 is a prime.

It is a super-2 number, since 2×10531500155² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10531500157) 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, 743681 + ... + 757709.

It is an arithmetic number, because the mean of its divisors is an integer number (861792750).

Almost surely, 2^10531500155 is an apocalyptic number.

10531500155 is a deficient number, since it is larger than the sum of its proper divisors (3257183845).

10531500155 is a wasteful number, since it uses less digits than its factorization.

10531500155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27694.

The product of its (nonzero) digits is 1875, while the sum is 26.

The spelling of 10531500155 in words is "ten billion, five hundred thirty-one million, five hundred thousand, one hundred fifty-five".