11647545011 has 4 divisors (see below), whose sum is σ = 11655255024. Its totient is φ = 11639835000.

The previous prime is 11647544989. The next prime is 11647545043. The reversal of 11647545011 is 11054574611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11647545011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11647547011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3852740 + ... + 3855761.

It is an arithmetic number, because the mean of its divisors is an integer number (2913813756).

Almost surely, 2^11647545011 is an apocalyptic number.

11647545011 is a deficient number, since it is larger than the sum of its proper divisors (7710013).

11647545011 is an equidigital number, since it uses as much as digits as its factorization.

11647545011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7710012.

The product of its (nonzero) digits is 16800, while the sum is 35.

The spelling of 11647545011 in words is "eleven billion, six hundred forty-seven million, five hundred forty-five thousand, eleven".