1165000002056 has 32 divisors (see below), whose sum is σ = 2465125401600. Its totient is φ = 511285266240.

The previous prime is 1165000002031. The next prime is 1165000002119. The reversal of 1165000002056 is 6502000005611.

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 7 ways as a sum of consecutive naturals, for example, 228249800 + ... + 228254903.

It is an arithmetic number, because the mean of its divisors is an integer number (77035168800).

Almost surely, 2^{1165000002056} is an apocalyptic number.

It is an amenable number.

1165000002056 is an abundant number, since it is smaller than the sum of its proper divisors (1300125399544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1165000002056 is a wasteful number, since it uses less digits than its factorization.

1165000002056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456504749 (or 456504745 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 1165000002056 its reverse (6502000005611), we get a palindrome (7667000007667).

The spelling of 1165000002056 in words is "one trillion, one hundred sixty-five billion, two thousand, fifty-six".