1156455656 has 16 divisors (see below), whose sum is σ = 2189824740. Its totient is φ = 572502400.

The previous prime is 1156455647. The next prime is 1156455667. The reversal of 1156455656 is 6565546511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 720063556 + 436392100 = 26834^2 + 20890^2 .

It is a super-4 number, since 4×1156455656⁴ (a number of 37 digits) contains 4444 as substring.

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, 714821 + ... + 716436.

Almost surely, 2^1156455656 is an apocalyptic number.

It is an amenable number.

1156455656 is a deficient number, since it is larger than the sum of its proper divisors (1033369084).

1156455656 is a wasteful number, since it uses less digits than its factorization.

1156455656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431364 (or 1431360 counting only the distinct ones).

The product of its digits is 540000, while the sum is 44.

The square root of 1156455656 is about 34006.7001633502. The cubic root of 1156455656 is about 1049.6463377329.

The spelling of 1156455656 in words is "one billion, one hundred fifty-six million, four hundred fifty-five thousand, six hundred fifty-six".