11066561517 has 16 divisors (see below), whose sum is σ = 16099806528. Its totient is φ = 6705761280.

The previous prime is 11066561497. The next prime is 11066561543. The reversal of 11066561517 is 71516566011.

It is not a de Polignac number, because 11066561517 - 2¹⁵ = 11066528749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11066561557) 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, 168283 + ... + 224615.

It is an arithmetic number, because the mean of its divisors is an integer number (1006237908).

Almost surely, 2^11066561517 is an apocalyptic number.

It is an amenable number.

11066561517 is a deficient number, since it is larger than the sum of its proper divisors (5033245011).

11066561517 is a wasteful number, since it uses less digits than its factorization.

11066561517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62300.

The product of its (nonzero) digits is 37800, while the sum is 39.

The spelling of 11066561517 in words is "eleven billion, sixty-six million, five hundred sixty-one thousand, five hundred seventeen".