1118906990656 has 189 divisors, whose sum is σ = 2798722844631. Its totient is φ = 442339881984.

The previous prime is 1118906990639. The next prime is 1118906990657. The reversal of 1118906990656 is 6560996098111.

The square root of 1118906990656 is 1057784.

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

It can be written as a sum of positive squares in 4 ways, for example, as 61794005056 + 1057112985600 = 248584^2 + 1028160^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1118906990594 and 1118906990603.

It is not an unprimeable number, because it can be changed into a prime (1118906990657) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 770066026 + ... + 770067478.

It is an arithmetic number, because the mean of its divisors is an integer number (14808057379).

Almost surely, 2^{1118906990656} is an apocalyptic number.

1118906990656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1118906990656 is the 1057784-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1118906990656

1118906990656 is an abundant number, since it is smaller than the sum of its proper divisors (1679815853975).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1118906990656 is an frugal number, since it uses more digits than its factorization.

1118906990656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2958 (or 1475 counting only the distinct ones).

The product of its (nonzero) digits is 6298560, while the sum is 61.

The spelling of 1118906990656 in words is "one trillion, one hundred eighteen billion, nine hundred six million, nine hundred ninety thousand, six hundred fifty-six".