11646630645 has 16 divisors (see below), whose sum is σ = 20068040832. Its totient is φ = 5733725760.

The previous prime is 11646630641. The next prime is 11646630647. The reversal of 11646630645 is 54603664611.

It is not a de Polignac number, because 11646630645 - 2² = 11646630641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11646630597 and 11646630606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11646630641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29862961 + ... + 29863350.

It is an arithmetic number, because the mean of its divisors is an integer number (1254252552).

Almost surely, 2^11646630645 is an apocalyptic number.

11646630645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11646630645 is a deficient number, since it is larger than the sum of its proper divisors (8421410187).

11646630645 is a wasteful number, since it uses less digits than its factorization.

11646630645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59726332.

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 11646630645 in words is "eleven billion, six hundred forty-six million, six hundred thirty thousand, six hundred forty-five".