11198399652801 has 9 divisors (see below), whose sum is σ = 16175480666241. Its totient is φ = 7465593075732.

The previous prime is 11198399652761. The next prime is 11198399652857. The reversal of 11198399652801 is 10825699389111.

The square root of 11198399652801 is 3346401.

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

11198399652801 is a `hidden beast` number, since 1 + 1 + 19 + 8 + 3 + 9 + 96 + 528 + 0 + 1 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 11198399652801 - 2⁹ = 11198399652289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11198399252801) 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, 9481470 + ... + 10596936.

Almost surely, 2^{11198399652801} is an apocalyptic number.

11198399652801 is the 3346401-st square number.

11198399652801 is the 1673201-st centered octagonal number.

It is an amenable number.

11198399652801 is a deficient number, since it is larger than the sum of its proper divisors (4977081013440).

11198399652801 is an frugal number, since it uses more digits than its factorization.

11198399652801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2230940 (or 1115470 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 63.

The spelling of 11198399652801 in words is "eleven trillion, one hundred ninety-eight billion, three hundred ninety-nine million, six hundred fifty-two thousand, eight hundred one".