105531538015 has 8 divisors (see below), whose sum is σ = 126676020960. Its totient is φ = 84399780192.

The previous prime is 105531538003. The next prime is 105531538019. The reversal of 105531538015 is 510835135501.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105531538015 is a prime.

It is a super-2 number, since 2×105531538015² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105531538019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3163024 + ... + 3196213.

It is an arithmetic number, because the mean of its divisors is an integer number (15834502620).

Almost surely, 2^105531538015 is an apocalyptic number.

105531538015 is a deficient number, since it is larger than the sum of its proper divisors (21144482945).

105531538015 is an equidigital number, since it uses as much as digits as its factorization.

105531538015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6362561.

The product of its (nonzero) digits is 45000, while the sum is 37.

The spelling of 105531538015 in words is "one hundred five billion, five hundred thirty-one million, five hundred thirty-eight thousand, fifteen".