1116505510651 has 16 divisors (see below), whose sum is σ = 1194583580800. Its totient is φ = 1040405845248.

The previous prime is 1116505510639. The next prime is 1116505510669. The reversal of 1116505510651 is 1560155056111.

It is a cyclic number.

It is not a de Polignac number, because 1116505510651 - 2¹¹ = 1116505508603 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1116505510651.

It is not an unprimeable number, because it can be changed into a prime (1116505510951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205120 + ... + 1508338.

It is an arithmetic number, because the mean of its divisors is an integer number (74661473800).

Almost surely, 2^{1116505510651} is an apocalyptic number.

1116505510651 is a deficient number, since it is larger than the sum of its proper divisors (78078070149).

1116505510651 is a wasteful number, since it uses less digits than its factorization.

1116505510651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303978.

The product of its (nonzero) digits is 22500, while the sum is 37.

The spelling of 1116505510651 in words is "one trillion, one hundred sixteen billion, five hundred five million, five hundred ten thousand, six hundred fifty-one".