6651155506612 has 24 divisors (see below), whose sum is σ = 11849387054400. Its totient is φ = 3265980856320.

The previous prime is 6651155506573. The next prime is 6651155506627. The reversal of 6651155506612 is 2166055511566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45490362 + ... + 45636337.

It is an arithmetic number, because the mean of its divisors is an integer number (493724460600).

Almost surely, 2^{6651155506612} is an apocalyptic number.

It is an amenable number.

6651155506612 is a deficient number, since it is larger than the sum of its proper divisors (5198231547788).

6651155506612 is a wasteful number, since it uses less digits than its factorization.

6651155506612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91127031 (or 91127029 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 49.

The spelling of 6651155506612 in words is "six trillion, six hundred fifty-one billion, one hundred fifty-five million, five hundred six thousand, six hundred twelve".