11801745159 has 8 divisors (see below), whose sum is σ = 15745422192. Its totient is φ = 7862949120.

The previous prime is 11801745157. The next prime is 11801745187. The reversal of 11801745159 is 95154710811.

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

It is not a de Polignac number, because 11801745159 - 2¹ = 11801745157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11801745159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11801745157) 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 7 ways as a sum of consecutive naturals, for example, 1214602 + ... + 1224279.

It is an arithmetic number, because the mean of its divisors is an integer number (1968177774).

Almost surely, 2^11801745159 is an apocalyptic number.

11801745159 is a deficient number, since it is larger than the sum of its proper divisors (3943677033).

11801745159 is a wasteful number, since it uses less digits than its factorization.

11801745159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2440497.

The product of its (nonzero) digits is 50400, while the sum is 42.

The spelling of 11801745159 in words is "eleven billion, eight hundred one million, seven hundred forty-five thousand, one hundred fifty-nine".