1161316664 has 16 divisors (see below), whose sum is σ = 2190510000. Its totient is φ = 577180672.

The previous prime is 1161316643. The next prime is 1161316679. The reversal of 1161316664 is 4666131611.

It is a super-3 number, since 3×1161316664³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

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, 433289 + ... + 435960.

It is an arithmetic number, because the mean of its divisors is an integer number (136906875).

Almost surely, 2^1161316664 is an apocalyptic number.

It is an amenable number.

1161316664 is a deficient number, since it is larger than the sum of its proper divisors (1029193336).

1161316664 is a wasteful number, since it uses less digits than its factorization.

1161316664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869422 (or 869418 counting only the distinct ones).

The product of its digits is 15552, while the sum is 35.

The square root of 1161316664 is about 34078.0965430876. The cubic root of 1161316664 is about 1051.1149649890.

The spelling of 1161316664 in words is "one billion, one hundred sixty-one million, three hundred sixteen thousand, six hundred sixty-four".