11188339990 has 16 divisors (see below), whose sum is σ = 20149183152. Its totient is φ = 4473075744.

The previous prime is 11188339969. The next prime is 11188339997. The reversal of 11188339990 is 9993388111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11188339997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261669 + ... + 301408.

It is an arithmetic number, because the mean of its divisors is an integer number (1259323947).

Almost surely, 2^11188339990 is an apocalyptic number.

11188339990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11188339990 is a deficient number, since it is larger than the sum of its proper divisors (8960843162).

11188339990 is a wasteful number, since it uses less digits than its factorization.

11188339990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565071.

The product of its (nonzero) digits is 419904, while the sum is 52.

The spelling of 11188339990 in words is "eleven billion, one hundred eighty-eight million, three hundred thirty-nine thousand, nine hundred ninety".