1156663356 has 12 divisors (see below), whose sum is σ = 2698881192. Its totient is φ = 385554448.

The previous prime is 1156663337. The next prime is 1156663363. The reversal of 1156663356 is 6533666511.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1156663356² = 2675740238226365472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48194295 + ... + 48194318.

It is an arithmetic number, because the mean of its divisors is an integer number (224906766).

Almost surely, 2^1156663356 is an apocalyptic number.

It is an amenable number.

1156663356 is an abundant number, since it is smaller than the sum of its proper divisors (1542217836).

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

1156663356 is a wasteful number, since it uses less digits than its factorization.

1156663356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96388620 (or 96388618 counting only the distinct ones).

The product of its digits is 291600, while the sum is 42.

The square root of 1156663356 is about 34009.7538362159. The cubic root of 1156663356 is about 1049.7091729695.

The spelling of 1156663356 in words is "one billion, one hundred fifty-six million, six hundred sixty-three thousand, three hundred fifty-six".