6615312036 has 12 divisors (see below), whose sum is σ = 15435728112. Its totient is φ = 2205104008.

The previous prime is 6615312031. The next prime is 6615312037. The reversal of 6615312036 is 6302135166.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 6615311988 and 6615312006.

It is not an unprimeable number, because it can be changed into a prime (6615312031) 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, 275637990 + ... + 275638013.

It is an arithmetic number, because the mean of its divisors is an integer number (1286310676).

Almost surely, 2^6615312036 is an apocalyptic number.

It is an amenable number.

6615312036 is an abundant number, since it is smaller than the sum of its proper divisors (8820416076).

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

6615312036 is a wasteful number, since it uses less digits than its factorization.

6615312036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551276010 (or 551276008 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 6615312036 is about 81334.5685179432. The cubic root of 6615312036 is about 1877.2269396496.

The spelling of 6615312036 in words is "six billion, six hundred fifteen million, three hundred twelve thousand, thirty-six".