1156446512 has 20 divisors (see below), whose sum is σ = 2412970560. Its totient is φ = 533744448.

The previous prime is 1156446493. The next prime is 1156446521. The reversal of 1156446512 is 2156446511.

It is a super-2 number, since 2×1156446512² = 2674737070233932288, which contains 22 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, 2779712 + ... + 2780127.

It is an arithmetic number, because the mean of its divisors is an integer number (120648528).

Almost surely, 2^1156446512 is an apocalyptic number.

It is an amenable number.

1156446512 is an abundant number, since it is smaller than the sum of its proper divisors (1256524048).

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

1156446512 is a wasteful number, since it uses less digits than its factorization.

1156446512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5559860 (or 5559854 counting only the distinct ones).

The product of its digits is 28800, while the sum is 35.

The square root of 1156446512 is about 34006.5657189902. The cubic root of 1156446512 is about 1049.6435712365.

Subtracting 1156446512 from its reverse (2156446511), we obtain a palindrome (999999999).

The spelling of 1156446512 in words is "one billion, one hundred fifty-six million, four hundred forty-six thousand, five hundred twelve".