1123455556790 has 16 divisors (see below), whose sum is σ = 2311108574112. Its totient is φ = 385184762304.

The previous prime is 1123455556709. The next prime is 1123455556819. The reversal of 1123455556790 is 976555543211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8024682479 + ... + 8024682618.

It is an arithmetic number, because the mean of its divisors is an integer number (144444285882).

Almost surely, 2^{1123455556790} is an apocalyptic number.

1123455556790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1123455556790 is an abundant number, since it is smaller than the sum of its proper divisors (1187653017322).

1123455556790 is a wasteful number, since it uses less digits than its factorization.

1123455556790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16049365111.

The product of its (nonzero) digits is 5670000, while the sum is 53.

The spelling of 1123455556790 in words is "one trillion, one hundred twenty-three billion, four hundred fifty-five million, five hundred fifty-six thousand, seven hundred ninety".