11660345147 has 16 divisors (see below), whose sum is σ = 12865754880. Its totient is φ = 10479856800.

The previous prime is 11660345141. The next prime is 11660345149. The reversal of 11660345147 is 74154306611.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11660345147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11660345147.

It is not an unprimeable number, because it can be changed into a prime (11660345141) 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, 323522 + ... + 357752.

It is an arithmetic number, because the mean of its divisors is an integer number (804109680).

Almost surely, 2^11660345147 is an apocalyptic number.

11660345147 is a deficient number, since it is larger than the sum of its proper divisors (1205409733).

11660345147 is a wasteful number, since it uses less digits than its factorization.

11660345147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34594.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 11660345147 in words is "eleven billion, six hundred sixty million, three hundred forty-five thousand, one hundred forty-seven".