11005050501 has 20 divisors (see below), whose sum is σ = 16821965952. Its totient is φ = 7166077128.

The previous prime is 11005050449. The next prime is 11005050509. The reversal of 11005050501 is 10505050011.

11005050501 is a `hidden beast` number, since 110 + 0 + 5 + 0 + 50 + 501 = 666.

It is not a de Polignac number, because 11005050501 - 2¹⁵ = 11005017733 is a prime.

It is a super-2 number, since 2×11005050501² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11005050509) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1576341 + ... + 1583306.

Almost surely, 2^11005050501 is an apocalyptic number.

It is an amenable number.

11005050501 is a deficient number, since it is larger than the sum of its proper divisors (5816915451).

11005050501 is an equidigital number, since it uses as much as digits as its factorization.

11005050501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3159702 (or 3159693 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 18.

The spelling of 11005050501 in words is "eleven billion, five million, fifty thousand, five hundred one".