11996601841 has 9 divisors (see below), whose sum is σ = 13956122649. Its totient is φ = 10282144404.

The previous prime is 11996601829. The next prime is 11996601847. The reversal of 11996601841 is 14810669911.

The square root of 11996601841 is 109529.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 11996601841 - 2¹⁵ = 11996569073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11996601791 and 11996601800.

It is not an unprimeable number, because it can be changed into a prime (11996601847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 758880 + ... + 774526.

Almost surely, 2^11996601841 is an apocalyptic number.

11996601841 is the 109529-th square number.

11996601841 is the 54765-th centered octagonal number.

It is an amenable number.

11996601841 is a deficient number, since it is larger than the sum of its proper divisors (1959520808).

11996601841 is an frugal number, since it uses more digits than its factorization.

11996601841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31308 (or 15654 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 46.

The spelling of 11996601841 in words is "eleven billion, nine hundred ninety-six million, six hundred one thousand, eight hundred forty-one".