1152565427775 has 24 divisors (see below), whose sum is σ = 1905624540160. Its totient is φ = 614685529440.

The previous prime is 1152565427771. The next prime is 1152565427821. The reversal of 1152565427775 is 5777245652511.

It is a Cunningham number, because it is equal to 1073576²-1.

It is not a de Polignac number, because 1152565427775 - 2² = 1152565427771 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152565427771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3041796 + ... + 3399654.

Almost surely, 2^{1152565427775} is an apocalyptic number.

1152565427775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1152565427775 is a deficient number, since it is larger than the sum of its proper divisors (753059112385).

1152565427775 is a wasteful number, since it uses less digits than its factorization.

1152565427775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400815 (or 400810 counting only the distinct ones).

The product of its digits is 20580000, while the sum is 57.

The spelling of 1152565427775 in words is "one trillion, one hundred fifty-two billion, five hundred sixty-five million, four hundred twenty-seven thousand, seven hundred seventy-five".