11662534123 has 16 divisors (see below), whose sum is σ = 12896573760. Its totient is φ = 10490208256.

The previous prime is 11662534099. The next prime is 11662534181. The reversal of 11662534123 is 32143526611.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11662534123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11662534523) 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, 463593 + ... + 488101.

It is an arithmetic number, because the mean of its divisors is an integer number (806035860).

Almost surely, 2^11662534123 is an apocalyptic number.

11662534123 is a deficient number, since it is larger than the sum of its proper divisors (1234039637).

11662534123 is a wasteful number, since it uses less digits than its factorization.

11662534123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25766.

The product of its digits is 25920, while the sum is 34.

The spelling of 11662534123 in words is "eleven billion, six hundred sixty-two million, five hundred thirty-four thousand, one hundred twenty-three".