11512131466 has 16 divisors (see below), whose sum is σ = 18840134880. Its totient is φ = 5232203280.

The previous prime is 11512131461. The next prime is 11512131467. The reversal of 11512131466 is 66413121511.

It is not an unprimeable number, because it can be changed into a prime (11512131461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219640 + ... + 266956.

It is an arithmetic number, because the mean of its divisors is an integer number (1177508430).

Almost surely, 2^11512131466 is an apocalyptic number.

11512131466 is a deficient number, since it is larger than the sum of its proper divisors (7328003414).

11512131466 is a wasteful number, since it uses less digits than its factorization.

11512131466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58389.

The product of its digits is 4320, while the sum is 31.

Adding to 11512131466 its reverse (66413121511), we get a palindrome (77925252977).

The spelling of 11512131466 in words is "eleven billion, five hundred twelve million, one hundred thirty-one thousand, four hundred sixty-six".