6351211161 has 32 divisors (see below), whose sum is σ = 9477112320. Its totient is φ = 4203695232.

The previous prime is 6351211157. The next prime is 6351211171. The reversal of 6351211161 is 1611121536.

6351211161 is a `hidden beast` number, since 635 + 1 + 2 + 11 + 16 + 1 = 666.

It is not a de Polignac number, because 6351211161 - 2² = 6351211157 is a prime.

It is a super-2 number, since 2×6351211161² = 80675766423221935842, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (6351211171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2496256 + ... + 2498798.

It is an arithmetic number, because the mean of its divisors is an integer number (296159760).

Almost surely, 2^6351211161 is an apocalyptic number.

It is an amenable number.

6351211161 is a deficient number, since it is larger than the sum of its proper divisors (3125901159).

6351211161 is a wasteful number, since it uses less digits than its factorization.

6351211161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3182 (or 3176 counting only the distinct ones).

The product of its digits is 1080, while the sum is 27.

The square root of 6351211161 is about 79694.4863902140. The cubic root of 6351211161 is about 1851.9056245223.

Adding to 6351211161 its reverse (1611121536), we get a palindrome (7962332697).

The spelling of 6351211161 in words is "six billion, three hundred fifty-one million, two hundred eleven thousand, one hundred sixty-one".