1156116156 has 36 divisors (see below), whose sum is σ = 2921079672. Its totient is φ = 355727424.

The previous prime is 1156116133. The next prime is 1156116163. The reversal of 1156116156 is 6516116511.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 283011 + ... + 287066.

It is an arithmetic number, because the mean of its divisors is an integer number (81141102).

Almost surely, 2^1156116156 is an apocalyptic number.

It is an amenable number.

1156116156 is an abundant number, since it is smaller than the sum of its proper divisors (1764963516).

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

1156116156 is a wasteful number, since it uses less digits than its factorization.

1156116156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570110 (or 570095 counting only the distinct ones).

The product of its digits is 5400, while the sum is 33.

The square root of 1156116156 is about 34001.7081335629. The cubic root of 1156116156 is about 1049.5436129960.

The spelling of 1156116156 in words is "one billion, one hundred fifty-six million, one hundred sixteen thousand, one hundred fifty-six".