1118156090041 has 9 divisors (see below), whose sum is σ = 1120369429413. Its totient is φ = 1115947120860.

The previous prime is 1118156090027. The next prime is 1118156090053. The reversal of 1118156090041 is 1400906518111.

The square root of 1118156090041 is 1057429.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 1118156090041 - 2¹³ = 1118156081849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1118156097041) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 908330896 + ... + 908332126.

It is an arithmetic number, because the mean of its divisors is an integer number (124485492157).

Almost surely, 2^{1118156090041} is an apocalyptic number.

1118156090041 is the 1057429-th square number.

1118156090041 is the 528715-th centered octagonal number.

It is an amenable number.

1118156090041 is a deficient number, since it is larger than the sum of its proper divisors (2213339372).

1118156090041 is an frugal number, since it uses more digits than its factorization.

1118156090041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4180 (or 2090 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 37.

The spelling of 1118156090041 in words is "one trillion, one hundred eighteen billion, one hundred fifty-six million, ninety thousand, forty-one".