11660362557 has 16 divisors (see below), whose sum is σ = 15704020800. Its totient is φ = 7695247232.

The previous prime is 11660362541. The next prime is 11660362579. The reversal of 11660362557 is 75526306611.

It is a cyclic number.

It is not a de Polignac number, because 11660362557 - 2⁴ = 11660362541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11660362507) 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, 447319 + ... + 472667.

It is an arithmetic number, because the mean of its divisors is an integer number (981501300).

Almost surely, 2^11660362557 is an apocalyptic number.

It is an amenable number.

11660362557 is a deficient number, since it is larger than the sum of its proper divisors (4043658243).

11660362557 is a wasteful number, since it uses less digits than its factorization.

11660362557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26892.

The product of its (nonzero) digits is 226800, while the sum is 42.

The spelling of 11660362557 in words is "eleven billion, six hundred sixty million, three hundred sixty-two thousand, five hundred fifty-seven".