1102511128556 has 12 divisors (see below), whose sum is σ = 1955824536792. Its totient is φ = 543704118048.

The previous prime is 1102511128529. The next prime is 1102511128613. The reversal of 1102511128556 is 6558211152011.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1887861230 + ... + 1887861813.

It is an arithmetic number, because the mean of its divisors is an integer number (162985378066).

Almost surely, 2^{1102511128556} is an apocalyptic number.

It is an amenable number.

1102511128556 is a deficient number, since it is larger than the sum of its proper divisors (853313408236).

1102511128556 is a wasteful number, since it uses less digits than its factorization.

1102511128556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3775723120 (or 3775723118 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 38.

The spelling of 1102511128556 in words is "one trillion, one hundred two billion, five hundred eleven million, one hundred twenty-eight thousand, five hundred fifty-six".