11721154590199 has 8 divisors (see below), whose sum is σ = 11916181457568. Its totient is φ = 11526959394720.

The previous prime is 11721154590137. The next prime is 11721154590281. The reversal of 11721154590199 is 99109545112711.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11721154590199 - 2⁷ = 11721154590071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11721154594199) 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 7 ways as a sum of consecutive naturals, for example, 207889552 + ... + 207945925.

It is an arithmetic number, because the mean of its divisors is an integer number (1489522682196).

Almost surely, 2^{11721154590199} is an apocalyptic number.

11721154590199 is a deficient number, since it is larger than the sum of its proper divisors (195026867369).

11721154590199 is an equidigital number, since it uses as much as digits as its factorization.

11721154590199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415835945.

The product of its (nonzero) digits is 1020600, while the sum is 55.

The spelling of 11721154590199 in words is "eleven trillion, seven hundred twenty-one billion, one hundred fifty-four million, five hundred ninety thousand, one hundred ninety-nine".