6156181069 has 4 divisors (see below), whose sum is σ = 6157963260. Its totient is φ = 6154398880.

The previous prime is 6156181019. The next prime is 6156181093. The reversal of 6156181069 is 9601816516.

6156181069 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 3786925444 + 2369255625 = 61538^2 + 48675^2 .

It is a cyclic number.

It is not a de Polignac number, because 6156181069 - 2¹³ = 6156172877 is a prime.

It is a super-2 number, since 2×6156181069² = 75797130708627965522, which 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 (6156181019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 885904 + ... + 892825.

It is an arithmetic number, because the mean of its divisors is an integer number (1539490815).

Almost surely, 2^6156181069 is an apocalyptic number.

It is an amenable number.

6156181069 is a deficient number, since it is larger than the sum of its proper divisors (1782191).

6156181069 is a wasteful number, since it uses less digits than its factorization.

6156181069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782190.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 6156181069 is about 78461.3348662894. The cubic root of 6156181069 is about 1832.7523921051.

The spelling of 6156181069 in words is "six billion, one hundred fifty-six million, one hundred eighty-one thousand, sixty-nine".