11655826387238 has 16 divisors (see below), whose sum is σ = 19133338193424. Its totient is φ = 5281389641760.

The previous prime is 11655826387223. The next prime is 11655826387327. The reversal of 11655826387238 is 83278362855611.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835655945 + ... + 835669892.

It is an arithmetic number, because the mean of its divisors is an integer number (1195833637089).

Almost surely, 2^{11655826387238} is an apocalyptic number.

11655826387238 is a deficient number, since it is larger than the sum of its proper divisors (7477511806186).

11655826387238 is a wasteful number, since it uses less digits than its factorization.

11655826387238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671326167.

The product of its digits is 116121600, while the sum is 65.

The spelling of 11655826387238 in words is "eleven trillion, six hundred fifty-five billion, eight hundred twenty-six million, three hundred eighty-seven thousand, two hundred thirty-eight".