6605001612 has 36 divisors (see below), whose sum is σ = 18213793416. Its totient is φ = 2001515520.

The previous prime is 6605001607. The next prime is 6605001617. The reversal of 6605001612 is 2161005066.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6605001607) and next prime (6605001617).

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (6605001617) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8339253 + ... + 8340044.

It is an arithmetic number, because the mean of its divisors is an integer number (505938706).

Almost surely, 2^6605001612 is an apocalyptic number.

It is an amenable number.

6605001612 is an abundant number, since it is smaller than the sum of its proper divisors (11608791804).

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

6605001612 is a wasteful number, since it uses less digits than its factorization.

6605001612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16679318 (or 16679313 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 6605001612 is about 81271.1610105331. The cubic root of 6605001612 is about 1876.2511696141.

Adding to 6605001612 its reverse (2161005066), we get a palindrome (8766006678).

The spelling of 6605001612 in words is "six billion, six hundred five million, one thousand, six hundred twelve".