6611110651556 has 6 divisors (see below), whose sum is σ = 11569443640230. Its totient is φ = 3305555325776.

The previous prime is 6611110651547. The next prime is 6611110651679. The reversal of 6611110651556 is 6551560111166.

It can be written as a sum of positive squares in only one way, i.e., 4824568320100 + 1786542331456 = 2196490^2 + 1336616^2 .

It is a super-2 number, since 2×6611110651556² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 826388831441 + ... + 826388831448.

It is an arithmetic number, because the mean of its divisors is an integer number (1928240606705).

Almost surely, 2^{6611110651556} is an apocalyptic number.

It is an amenable number.

6611110651556 is a deficient number, since it is larger than the sum of its proper divisors (4958332988674).

6611110651556 is a wasteful number, since it uses less digits than its factorization.

6611110651556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652777662893 (or 1652777662891 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 44.

The spelling of 6611110651556 in words is "six trillion, six hundred eleven billion, one hundred ten million, six hundred fifty-one thousand, five hundred fifty-six".