1118255126800 has 90 divisors (see below), whose sum is σ = 3125237865018. Its totient is φ = 383401751040.

The previous prime is 1118255126759. The next prime is 1118255126803. The reversal of 1118255126800 is 86215528111.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 20688794896 + 1097566331904 = 143836^2 + 1047648^2 .

It is a super-2 number, since 2×1118255126800² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (1118255126803) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 28507317 + ... + 28546516.

Almost surely, 2^{1118255126800} is an apocalyptic number.

1118255126800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1118255126800 is an abundant number, since it is smaller than the sum of its proper divisors (2006982738218).

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

1118255126800 is a wasteful number, since it uses less digits than its factorization.

1118255126800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57053865 (or 57053847 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 40.

The spelling of 1118255126800 in words is "one trillion, one hundred eighteen billion, two hundred fifty-five million, one hundred twenty-six thousand, eight hundred".