11506669667577 has 40 divisors (see below), whose sum is σ = 20123678881152. Its totient is φ = 6414868094400.

The previous prime is 11506669667567. The next prime is 11506669667579. The reversal of 11506669667577 is 77576696660511.

It is not a de Polignac number, because 11506669667577 - 2⁸ = 11506669667321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11506669667579) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 247463949 + ... + 247510442.

Almost surely, 2^{11506669667577} is an apocalyptic number.

It is an amenable number.

11506669667577 is a deficient number, since it is larger than the sum of its proper divisors (8617009213575).

11506669667577 is an equidigital number, since it uses as much as digits as its factorization.

11506669667577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494974451 (or 494974442 counting only the distinct ones).

The product of its (nonzero) digits is 600112800, while the sum is 72.

The spelling of 11506669667577 in words is "eleven trillion, five hundred six billion, six hundred sixty-nine million, six hundred sixty-seven thousand, five hundred seventy-seven".