11231645005 has 48 divisors (see below), whose sum is σ = 15862189824. Its totient is φ = 7612012800.

The previous prime is 11231645003. The next prime is 11231645011. The reversal of 11231645005 is 50054613211.

It is not a de Polignac number, because 11231645005 - 2¹ = 11231645003 is a prime.

It is a super-2 number, since 2×11231645005² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231645003) 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 47 ways as a sum of consecutive naturals, for example, 8619184 + ... + 8620486.

It is an arithmetic number, because the mean of its divisors is an integer number (330462288).

Almost surely, 2^11231645005 is an apocalyptic number.

It is an amenable number.

11231645005 is a deficient number, since it is larger than the sum of its proper divisors (4630544819).

11231645005 is a wasteful number, since it uses less digits than its factorization.

11231645005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1706 (or 1699 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 11231645005 in words is "eleven billion, two hundred thirty-one million, six hundred forty-five thousand, five".