11205445136 has 20 divisors (see below), whose sum is σ = 21716197500. Its totient is φ = 5601265152.

The previous prime is 11205445117. The next prime is 11205445183. The reversal of 11205445136 is 63154450211.

It can be written as a sum of positive squares in 2 ways, for example, as 6616195600 + 4589249536 = 81340^2 + 67744^2 .

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, 26261 + ... + 151988.

It is an arithmetic number, because the mean of its divisors is an integer number (1085809875).

Almost surely, 2^11205445136 is an apocalyptic number.

11205445136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11205445136 is a deficient number, since it is larger than the sum of its proper divisors (10510752364).

11205445136 is a wasteful number, since it uses less digits than its factorization.

11205445136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182186 (or 182180 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 11205445136 its reverse (63154450211), we get a palindrome (74359895347).

The spelling of 11205445136 in words is "eleven billion, two hundred five million, four hundred forty-five thousand, one hundred thirty-six".