1123455566678 has 8 divisors (see below), whose sum is σ = 1694597782680. Its totient is φ = 558589639120.

The previous prime is 1123455566641. The next prime is 1123455566713. The reversal of 1123455566678 is 8766655543211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1123455566678² (a number of 25 digits) contains 22 as substring.

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1569071663 + ... + 1569072378.

It is an arithmetic number, because the mean of its divisors is an integer number (211824722835).

Almost surely, 2^{1123455566678} is an apocalyptic number.

1123455566678 is a deficient number, since it is larger than the sum of its proper divisors (571142216002).

1123455566678 is a wasteful number, since it uses less digits than its factorization.

1123455566678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3138144222.

The product of its digits is 36288000, while the sum is 59.

The spelling of 1123455566678 in words is "one trillion, one hundred twenty-three billion, four hundred fifty-five million, five hundred sixty-six thousand, six hundred seventy-eight".