1123455666790 has 16 divisors (see below), whose sum is σ = 2076874800912. Its totient is φ = 437236799904.

The previous prime is 1123455666721. The next prime is 1123455666829. The reversal of 1123455666790 is 976665543211.

It is a happy number.

It is a super-3 number, since 3×1123455666790³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1518182964 + ... + 1518183703.

It is an arithmetic number, because the mean of its divisors is an integer number (129804675057).

Almost surely, 2^{1123455666790} is an apocalyptic number.

1123455666790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1123455666790 is a deficient number, since it is larger than the sum of its proper divisors (953419134122).

1123455666790 is a wasteful number, since it uses less digits than its factorization.

1123455666790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3036366711.

The product of its (nonzero) digits is 8164800, while the sum is 55.

The spelling of 1123455666790 in words is "one trillion, one hundred twenty-three billion, four hundred fifty-five million, six hundred sixty-six thousand, seven hundred ninety".