11660613953 has 2 divisors, whose sum is σ = 11660613954. Its totient is φ = 11660613952.

The previous prime is 11660613941. The next prime is 11660613983. The reversal of 11660613953 is 35931606611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11004639409 + 655974544 = 104903^2 + 25612^2 .

It is a cyclic number.

It is not a de Polignac number, because 11660613953 - 2²⁰ = 11659565377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11660613953.

It is not a weakly prime, because it can be changed into another prime (11660613983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5830306976 + 5830306977.

It is an arithmetic number, because the mean of its divisors is an integer number (5830306977).

Almost surely, 2^11660613953 is an apocalyptic number.

It is an amenable number.

11660613953 is a deficient number, since it is larger than the sum of its proper divisors (1).

11660613953 is an equidigital number, since it uses as much as digits as its factorization.

11660613953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87480, while the sum is 41.

The spelling of 11660613953 in words is "eleven billion, six hundred sixty million, six hundred thirteen thousand, nine hundred fifty-three".