6355397181 has 32 divisors (see below), whose sum is σ = 10269324288. Its totient is φ = 3412949760.

The previous prime is 6355397161. The next prime is 6355397207. The reversal of 6355397181 is 1817935536.

It is not a de Polignac number, because 6355397181 - 2⁹ = 6355396669 is a prime.

It is a super-2 number, since 2×6355397181² = 80782146656525493522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6355397181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6355397161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 233806 + ... + 259568.

It is an arithmetic number, because the mean of its divisors is an integer number (320916384).

Almost surely, 2^6355397181 is an apocalyptic number.

It is an amenable number.

6355397181 is a deficient number, since it is larger than the sum of its proper divisors (3913927107).

6355397181 is a wasteful number, since it uses less digits than its factorization.

6355397181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26481.

The product of its digits is 680400, while the sum is 48.

The square root of 6355397181 is about 79720.7449852295. The cubic root of 6355397181 is about 1852.3123926854.

The spelling of 6355397181 in words is "six billion, three hundred fifty-five million, three hundred ninety-seven thousand, one hundred eighty-one".