1155565416 has 16 divisors (see below), whose sum is σ = 2888913600. Its totient is φ = 385188464.

The previous prime is 1155565391. The next prime is 1155565423. The reversal of 1155565416 is 6145655511.

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, 24074256 + ... + 24074303.

It is an arithmetic number, because the mean of its divisors is an integer number (180557100).

Almost surely, 2^1155565416 is an apocalyptic number.

It is an amenable number.

1155565416 is an abundant number, since it is smaller than the sum of its proper divisors (1733348184).

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

1155565416 is a wasteful number, since it uses less digits than its factorization.

1155565416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48148568 (or 48148564 counting only the distinct ones).

The product of its digits is 90000, while the sum is 39.

The square root of 1155565416 is about 33993.6084580616. The cubic root of 1155565416 is about 1049.3769292087.

The spelling of 1155565416 in words is "one billion, one hundred fifty-five million, five hundred sixty-five thousand, four hundred sixteen".