1123617165525 has 48 divisors (see below), whose sum is σ = 2064888870400. Its totient is φ = 599041111680.

The previous prime is 1123617165499. The next prime is 1123617165571. The reversal of 1123617165525 is 5255617163211.

1123617165525 is a `hidden beast` number, since 1 + 1 + 2 + 3 + 61 + 7 + 1 + 65 + 525 = 666.

It is not a de Polignac number, because 1123617165525 - 2²⁸ = 1123348730069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 1529217 + ... + 2141433.

Almost surely, 2^{1123617165525} is an apocalyptic number.

1123617165525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1123617165525 is a deficient number, since it is larger than the sum of its proper divisors (941271704875).

1123617165525 is a wasteful number, since it uses less digits than its factorization.

1123617165525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614955 (or 614944 counting only the distinct ones).

The product of its digits is 378000, while the sum is 45.

The spelling of 1123617165525 in words is "one trillion, one hundred twenty-three billion, six hundred seventeen million, one hundred sixty-five thousand, five hundred twenty-five".