11669138154 has 160 divisors (see below), whose sum is σ = 28255106880. Its totient is φ = 3588219648.

The previous prime is 11669138137. The next prime is 11669138161. The reversal of 11669138154 is 45183196611.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 38010069 + ... + 38010375.

It is an arithmetic number, because the mean of its divisors is an integer number (176594418).

Almost surely, 2^11669138154 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11669138154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14127553440).

11669138154 is an abundant number, since it is smaller than the sum of its proper divisors (16585968726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11669138154 is a wasteful number, since it uses less digits than its factorization.

11669138154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626 (or 617 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The spelling of 11669138154 in words is "eleven billion, six hundred sixty-nine million, one hundred thirty-eight thousand, one hundred fifty-four".