1125569134667 has 4 divisors (see below), whose sum is σ = 1149517414176. Its totient is φ = 1101620855160.

The previous prime is 1125569134663. The next prime is 1125569134673. The reversal of 1125569134667 is 7664319655211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1125569134667 - 2² = 1125569134663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125569134661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11974139684 + ... + 11974139777.

It is an arithmetic number, because the mean of its divisors is an integer number (287379353544).

Almost surely, 2^{1125569134667} is an apocalyptic number.

1125569134667 is a deficient number, since it is larger than the sum of its proper divisors (23948279509).

1125569134667 is an equidigital number, since it uses as much as digits as its factorization.

1125569134667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23948279508.

The product of its digits is 8164800, while the sum is 56.

The spelling of 1125569134667 in words is "one trillion, one hundred twenty-five billion, five hundred sixty-nine million, one hundred thirty-four thousand, six hundred sixty-seven".