1156551116 has 18 divisors (see below), whose sum is σ = 2354408028. Its totient is φ = 495664680.

The previous prime is 1156551103. The next prime is 1156551167. The reversal of 1156551116 is 6111556511.

It is a super-2 number, since 2×1156551116² = 2675220967841690912, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2950190 + ... + 2950581.

It is an arithmetic number, because the mean of its divisors is an integer number (130800446).

Almost surely, 2^1156551116 is an apocalyptic number.

It is an amenable number.

1156551116 is an abundant number, since it is smaller than the sum of its proper divisors (1197856912).

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

1156551116 is a wasteful number, since it uses less digits than its factorization.

1156551116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5900789 (or 5900780 counting only the distinct ones).

The product of its digits is 4500, while the sum is 32.

The square root of 1156551116 is about 34008.1036813287. The cubic root of 1156551116 is about 1049.6752180686.

The spelling of 1156551116 in words is "one billion, one hundred fifty-six million, five hundred fifty-one thousand, one hundred sixteen".