6115651566 has 8 divisors (see below), whose sum is σ = 12231303144. Its totient is φ = 2038550520.

The previous prime is 6115651561. The next prime is 6115651579. The reversal of 6115651566 is 6651565116.

It is a sphenic number, since it is the product of 3 distinct primes.

6115651566 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6115651561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509637625 + ... + 509637636.

It is an arithmetic number, because the mean of its divisors is an integer number (1528912893).

Almost surely, 2^6115651566 is an apocalyptic number.

6115651566 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6115651566 is a wasteful number, since it uses less digits than its factorization.

6115651566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019275266.

The product of its digits is 162000, while the sum is 42.

The square root of 6115651566 is about 78202.6314518891. The cubic root of 6115651566 is about 1828.7215299315.

It can be divided in two parts, 6 and 115651566, that multiplied together give a palindrome (693909396).

The spelling of 6115651566 in words is "six billion, one hundred fifteen million, six hundred fifty-one thousand, five hundred sixty-six".