11193661158251 has 32 divisors (see below), whose sum is σ = 13509506082240. Its totient is φ = 9138215116800.

The previous prime is 11193661158227. The next prime is 11193661158257. The reversal of 11193661158251 is 15285116639111.

It is not a de Polignac number, because 11193661158251 - 2⁶ = 11193661158187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11193661158251.

It is not an unprimeable number, because it can be changed into a prime (11193661158257) 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 31 ways as a sum of consecutive naturals, for example, 634616 + ... + 4773893.

It is an arithmetic number, because the mean of its divisors is an integer number (422172065070).

Almost surely, 2^{11193661158251} is an apocalyptic number.

11193661158251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11193661158251 is a deficient number, since it is larger than the sum of its proper divisors (2315844923989).

11193661158251 is a wasteful number, since it uses less digits than its factorization.

11193661158251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5408927.

The product of its digits is 388800, while the sum is 50.

The spelling of 11193661158251 in words is "eleven trillion, one hundred ninety-three billion, six hundred sixty-one million, one hundred fifty-eight thousand, two hundred fifty-one".