1161563335 has 16 divisors (see below), whose sum is σ = 1523480832. Its totient is φ = 846374400.

The previous prime is 1161563329. The next prime is 1161563339. The reversal of 1161563335 is 5333651611.

It is not a de Polignac number, because 1161563335 - 2¹¹ = 1161561287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1161563335.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161563339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217776 + ... + 223045.

It is an arithmetic number, because the mean of its divisors is an integer number (95217552).

Almost surely, 2^1161563335 is an apocalyptic number.

1161563335 is a deficient number, since it is larger than the sum of its proper divisors (361917497).

1161563335 is a wasteful number, since it uses less digits than its factorization.

1161563335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440874.

The product of its digits is 24300, while the sum is 34.

The square root of 1161563335 is about 34081.7155524777. The cubic root of 1161563335 is about 1051.1893808746.

The spelling of 1161563335 in words is "one billion, one hundred sixty-one million, five hundred sixty-three thousand, three hundred thirty-five".