1156056021836 has 6 divisors (see below), whose sum is σ = 2023098038220. Its totient is φ = 578028010916.

The previous prime is 1156056021821. The next prime is 1156056021859. The reversal of 1156056021836 is 6381206506511.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144507002726 + ... + 144507002733.

It is an arithmetic number, because the mean of its divisors is an integer number (337183006370).

Almost surely, 2^{1156056021836} is an apocalyptic number.

It is an amenable number.

1156056021836 is a deficient number, since it is larger than the sum of its proper divisors (867042016384).

1156056021836 is a wasteful number, since it uses less digits than its factorization.

1156056021836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289014005463 (or 289014005461 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 44.

The spelling of 1156056021836 in words is "one trillion, one hundred fifty-six billion, fifty-six million, twenty-one thousand, eight hundred thirty-six".