1151055656 has 8 divisors (see below), whose sum is σ = 2158229370. Its totient is φ = 575527824.

The previous prime is 1151055623. The next prime is 1151055671. The reversal of 1151055656 is 6565501511.

It can be written as a sum of positive squares in only one way, i.e., 590976100 + 560079556 = 24310^2 + 23666^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71940971 + ... + 71940986.

Almost surely, 2^1151055656 is an apocalyptic number.

It is an amenable number.

1151055656 is a deficient number, since it is larger than the sum of its proper divisors (1007173714).

1151055656 is a wasteful number, since it uses less digits than its factorization.

1151055656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143881963 (or 143881959 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 35.

The square root of 1151055656 is about 33927.2111438591. The cubic root of 1151055656 is about 1048.0100347698.

The spelling of 1151055656 in words is "one billion, one hundred fifty-one million, fifty-five thousand, six hundred fifty-six".