6615672072556 has 12 divisors (see below), whose sum is σ = 11577476442168. Its totient is φ = 3307821660512.

The previous prime is 6615672072553. The next prime is 6615672072587. The reversal of 6615672072556 is 6552702765166.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6615672072556.

It is not an unprimeable number, because it can be changed into a prime (6615672072553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2523046 + ... + 4426861.

It is an arithmetic number, because the mean of its divisors is an integer number (964789703514).

Almost surely, 2^{6615672072556} is an apocalyptic number.

It is an amenable number.

6615672072556 is a deficient number, since it is larger than the sum of its proper divisors (4961804369612).

6615672072556 is a wasteful number, since it uses less digits than its factorization.

6615672072556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7187888 (or 7187886 counting only the distinct ones).

The product of its (nonzero) digits is 31752000, while the sum is 58.

The spelling of 6615672072556 in words is "six trillion, six hundred fifteen billion, six hundred seventy-two million, seventy-two thousand, five hundred fifty-six".