1156266356 has 48 divisors (see below), whose sum is σ = 2577456000. Its totient is φ = 441842688.

The previous prime is 1156266329. The next prime is 1156266367. The reversal of 1156266356 is 6536626511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54881 + ... + 72968.

It is an arithmetic number, because the mean of its divisors is an integer number (53697000).

Almost surely, 2^1156266356 is an apocalyptic number.

It is an amenable number.

1156266356 is an abundant number, since it is smaller than the sum of its proper divisors (1421189644).

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

1156266356 is a wasteful number, since it uses less digits than its factorization.

1156266356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127896 (or 127894 counting only the distinct ones).

The product of its digits is 194400, while the sum is 41.

The square root of 1156266356 is about 34003.9167743953. The cubic root of 1156266356 is about 1049.5890624732.

The spelling of 1156266356 in words is "one billion, one hundred fifty-six million, two hundred sixty-six thousand, three hundred fifty-six".