6166565616 has 40 divisors (see below), whose sum is σ = 16031780944. Its totient is φ = 2042426880.

The previous prime is 6166565611. The next prime is 6166565621. The reversal of 6166565616 is 6165656616.

It is an interprime number because it is at equal distance from previous prime (6166565611) and next prime (6166565621).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6166565611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401605 + ... + 416676.

Almost surely, 2^6166565616 is an apocalyptic number.

It is an amenable number.

6166565616 is an abundant number, since it is smaller than the sum of its proper divisors (9865215328).

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

6166565616 is a wasteful number, since it uses less digits than its factorization.

6166565616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818449 (or 818443 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 48.

The square root of 6166565616 is about 78527.4831890084. The cubic root of 6166565616 is about 1833.7823386266.

The spelling of 6166565616 in words is "six billion, one hundred sixty-six million, five hundred sixty-five thousand, six hundred sixteen".