11115900638 has 8 divisors (see below), whose sum is σ = 17551422120. Its totient is φ = 5265426600.

The previous prime is 11115900617. The next prime is 11115900641. The reversal of 11115900638 is 83600951111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 11115900598 and 11115900607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146261813 + ... + 146261888.

It is an arithmetic number, because the mean of its divisors is an integer number (2193927765).

Almost surely, 2^11115900638 is an apocalyptic number.

11115900638 is a deficient number, since it is larger than the sum of its proper divisors (6435521482).

11115900638 is a wasteful number, since it uses less digits than its factorization.

11115900638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292523722.

The product of its (nonzero) digits is 6480, while the sum is 35.

The spelling of 11115900638 in words is "eleven billion, one hundred fifteen million, nine hundred thousand, six hundred thirty-eight".