1163647728265 has 32 divisors (see below), whose sum is σ = 1526225224320. Its totient is φ = 844676851200.

The previous prime is 1163647728211. The next prime is 1163647728277. The reversal of 1163647728265 is 5628277463611.

It is not a de Polignac number, because 1163647728265 - 2²⁹ = 1163110857353 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94010757 + ... + 94023133.

It is an arithmetic number, because the mean of its divisors is an integer number (47694538260).

Almost surely, 2^{1163647728265} is an apocalyptic number.

It is an amenable number.

1163647728265 is a deficient number, since it is larger than the sum of its proper divisors (362577496055).

1163647728265 is a wasteful number, since it uses less digits than its factorization.

1163647728265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15513.

The product of its digits is 20321280, while the sum is 58.

The spelling of 1163647728265 in words is "one trillion, one hundred sixty-three billion, six hundred forty-seven million, seven hundred twenty-eight thousand, two hundred sixty-five".