6015816112181 has 4 divisors (see below), whose sum is σ = 6015915691500. Its totient is φ = 6015716532864.

The previous prime is 6015816112147. The next prime is 6015816112219. The reversal of 6015816112181 is 1812116185106.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 442179781156 + 5573636331025 = 664966^2 + 2360855^2 .

It is a cyclic number.

It is not a de Polignac number, because 6015816112181 - 2¹⁰ = 6015816111157 is a prime.

It is a super-2 number, since 2×6015816112181² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6015816112381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49698986 + ... + 49819883.

It is an arithmetic number, because the mean of its divisors is an integer number (1503978922875).

Almost surely, 2^{6015816112181} is an apocalyptic number.

It is an amenable number.

6015816112181 is a deficient number, since it is larger than the sum of its proper divisors (99579319).

6015816112181 is an equidigital number, since it uses as much as digits as its factorization.

6015816112181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99579318.

The product of its (nonzero) digits is 23040, while the sum is 41.

The spelling of 6015816112181 in words is "six trillion, fifteen billion, eight hundred sixteen million, one hundred twelve thousand, one hundred eighty-one".