1125515450056 has 16 divisors (see below), whose sum is σ = 2167377725340. Its totient is φ = 547548056640.

The previous prime is 1125515449973. The next prime is 1125515450113. The reversal of 1125515450056 is 6500545155211.

It can be written as a sum of positive squares in 2 ways, for example, as 1123884097956 + 1631352100 = 1060134^2 + 40390^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1901208235 + ... + 1901208826.

Almost surely, 2^{1125515450056} is an apocalyptic number.

It is an amenable number.

1125515450056 is a deficient number, since it is larger than the sum of its proper divisors (1041862275284).

1125515450056 is a wasteful number, since it uses less digits than its factorization.

1125515450056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3802417104 (or 3802417100 counting only the distinct ones).

The product of its (nonzero) digits is 150000, while the sum is 40.

The spelling of 1125515450056 in words is "one trillion, one hundred twenty-five billion, five hundred fifteen million, four hundred fifty thousand, fifty-six".