11611165998 has 8 divisors (see below), whose sum is σ = 23222332008. Its totient is φ = 3870388664.

The previous prime is 11611165967. The next prime is 11611166003. The reversal of 11611165998 is 89956111611.

It is a sphenic number, since it is the product of 3 distinct primes.

11611165998 is an admirable number.

It is a super-2 number, since 2×11611165998² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

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, 967597161 + ... + 967597172.

It is an arithmetic number, because the mean of its divisors is an integer number (2902791501).

Almost surely, 2^11611165998 is an apocalyptic number.

11611165998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11611165998 is a wasteful number, since it uses less digits than its factorization.

11611165998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935194338.

The product of its digits is 116640, while the sum is 48.

The spelling of 11611165998 in words is "eleven billion, six hundred eleven million, one hundred sixty-five thousand, nine hundred ninety-eight".