1118145515776 has 27 divisors (see below), whose sum is σ = 2231957047621. Its totient is φ = 559064298496.

The previous prime is 1118145515719. The next prime is 1118145515783. The reversal of 1118145515776 is 6775155418111.

The square root of 1118145515776 is 1057424.

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

It can be written as a sum of positive squares in only one way, i.e., 241450373376 + 876695142400 = 491376^2 + 936320^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 16885740 + ... + 16951828.

Almost surely, 2^{1118145515776} is an apocalyptic number.

1118145515776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1118145515776 is the 1057424-th square number.

It is an amenable number.

1118145515776 is a deficient number, since it is larger than the sum of its proper divisors (1113811531845).

1118145515776 is an frugal number, since it uses more digits than its factorization.

1118145515776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132194 (or 66091 counting only the distinct ones).

The product of its digits is 1176000, while the sum is 52.

The spelling of 1118145515776 in words is "one trillion, one hundred eighteen billion, one hundred forty-five million, five hundred fifteen thousand, seven hundred seventy-six".