1156621908128 has 24 divisors (see below), whose sum is σ = 2289680052660. Its totient is φ = 575115863040.

The previous prime is 1156621908097. The next prime is 1156621908131. The reversal of 1156621908128 is 8218091266511.

It can be written as a sum of positive squares in 2 ways, for example, as 1146981024784 + 9640883344 = 1070972^2 + 98188^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99840713 + ... + 99852296.

Almost surely, 2^{1156621908128} is an apocalyptic number.

It is an amenable number.

1156621908128 is a deficient number, since it is larger than the sum of its proper divisors (1133058144532).

1156621908128 is a wasteful number, since it uses less digits than its factorization.

1156621908128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199693200 (or 199693192 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 50.

The spelling of 1156621908128 in words is "one trillion, one hundred fifty-six billion, six hundred twenty-one million, nine hundred eight thousand, one hundred twenty-eight".