6163686261 has 12 divisors (see below), whose sum is σ = 8916871392. Its totient is φ = 4102769256.

The previous prime is 6163686253. The next prime is 6163686271. The reversal of 6163686261 is 1626863616.

6163686261 is a `hidden beast` number, since 6 + 1 + 636 + 8 + 6 + 2 + 6 + 1 = 666.

It is not a de Polignac number, because 6163686261 - 2³ = 6163686253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6163686271) 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 11 ways as a sum of consecutive naturals, for example, 523431 + ... + 535076.

It is an arithmetic number, because the mean of its divisors is an integer number (743072616).

Almost surely, 2^6163686261 is an apocalyptic number.

It is an amenable number.

6163686261 is a deficient number, since it is larger than the sum of its proper divisors (2753185131).

6163686261 is a wasteful number, since it uses less digits than its factorization.

6163686261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059160 (or 1059157 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 6163686261 is about 78509.1476262480. The cubic root of 6163686261 is about 1833.4968781450.

The spelling of 6163686261 in words is "six billion, one hundred sixty-three million, six hundred eighty-six thousand, two hundred sixty-one".