11545505050 has 24 divisors (see below), whose sum is σ = 21505338972. Its totient is φ = 4611600000.

The previous prime is 11545505047. The next prime is 11545505051. The reversal of 11545505050 is 5050554511.

It can be written as a sum of positive squares in 6 ways, for example, as 5126130409 + 6419374641 = 71597^2 + 80121^2 .

It is not an unprimeable number, because it can be changed into a prime (11545505051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129651 + ... + 199750.

Almost surely, 2^11545505050 is an apocalyptic number.

11545505050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11545505050 is a deficient number, since it is larger than the sum of its proper divisors (9959833922).

11545505050 is a wasteful number, since it uses less digits than its factorization.

11545505050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330114 (or 330109 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 31.

The spelling of 11545505050 in words is "eleven billion, five hundred forty-five million, five hundred five thousand, fifty".