11138555326 has 32 divisors (see below), whose sum is σ = 17837107200. Its totient is φ = 5201632800.

The previous prime is 11138555291. The next prime is 11138555357. The reversal of 11138555326 is 62355583111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 911211 + ... + 923353.

It is an arithmetic number, because the mean of its divisors is an integer number (557409600).

Almost surely, 2^11138555326 is an apocalyptic number.

11138555326 is a deficient number, since it is larger than the sum of its proper divisors (6698551874).

11138555326 is a wasteful number, since it uses less digits than its factorization.

11138555326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12504.

The product of its digits is 108000, while the sum is 40.

The spelling of 11138555326 in words is "eleven billion, one hundred thirty-eight million, five hundred fifty-five thousand, three hundred twenty-six".