11650161500001 has 10 divisors (see below), whose sum is σ = 17403327672962. Its totient is φ = 7766774333280.

The previous prime is 11650161499997. The next prime is 11650161500011. The reversal of 11650161500001 is 10000516105611.

11650161500001 is a `hidden beast` number, since 1 + 1 + 6 + 501 + 6 + 150 + 0 + 0 + 0 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6530191819776 + 5119969680225 = 2555424^2 + 2262735^2 .

It is not a de Polignac number, because 11650161500001 - 2² = 11650161499997 is a prime.

It is a super-2 number, since 2×11650161500001² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11650161500011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 71914577080 + ... + 71914577241.

Almost surely, 2^{11650161500001} is an apocalyptic number.

It is an amenable number.

11650161500001 is a deficient number, since it is larger than the sum of its proper divisors (5753166172961).

11650161500001 is an equidigital number, since it uses as much as digits as its factorization.

11650161500001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143829154333 (or 143829154324 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 27.

Adding to 11650161500001 its reverse (10000516105611), we get a palindrome (21650677605612).

The spelling of 11650161500001 in words is "eleven trillion, six hundred fifty billion, one hundred sixty-one million, five hundred thousand, one".