6156395811 has 12 divisors (see below), whose sum is σ = 8913209760. Its totient is φ = 4094738640.

The previous prime is 6156395807. The next prime is 6156395821. The reversal of 6156395811 is 1185936516.

6156395811 is a `hidden beast` number, since 6 + 1 + 5 + 63 + 9 + 581 + 1 = 666.

It is not a de Polignac number, because 6156395811 - 2² = 6156395807 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (6156395821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 789676 + ... + 797433.

It is an arithmetic number, because the mean of its divisors is an integer number (742767480).

Almost surely, 2^6156395811 is an apocalyptic number.

6156395811 is a deficient number, since it is larger than the sum of its proper divisors (2756813949).

6156395811 is a wasteful number, since it uses less digits than its factorization.

6156395811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1587546 (or 1587543 counting only the distinct ones).

The product of its digits is 194400, while the sum is 45.

The square root of 6156395811 is about 78462.7033118284. The cubic root of 6156395811 is about 1832.7737020879.

The spelling of 6156395811 in words is "six billion, one hundred fifty-six million, three hundred ninety-five thousand, eight hundred eleven".