1118075886521 has 16 divisors (see below), whose sum is σ = 1227865184448. Its totient is φ = 1009651003200.

The previous prime is 1118075886509. The next prime is 1118075886553. The reversal of 1118075886521 is 1256885708111.

It is a cyclic number.

It is not a de Polignac number, because 1118075886521 - 2¹⁴ = 1118075870137 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1118075816521) 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, 3169235 + ... + 3504311.

It is an arithmetic number, because the mean of its divisors is an integer number (76741574028).

Almost surely, 2^{1118075886521} is an apocalyptic number.

1118075886521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1118075886521 is a deficient number, since it is larger than the sum of its proper divisors (109789297927).

1118075886521 is a wasteful number, since it uses less digits than its factorization.

1118075886521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337112.

The product of its (nonzero) digits is 1075200, while the sum is 53.

The spelling of 1118075886521 in words is "one trillion, one hundred eighteen billion, seventy-five million, eight hundred eighty-six thousand, five hundred twenty-one".