11545315650 has 72 divisors (see below), whose sum is σ = 33838285104. Its totient is φ = 2798863200.

The previous prime is 11545315637. The next prime is 11545315651. The reversal of 11545315650 is 5651354511.

11545315650 is a `hidden beast` number, since 1 + 1 + 5 + 453 + 156 + 50 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11545315651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1161244 + ... + 1171143.

It is an arithmetic number, because the mean of its divisors is an integer number (469976182).

Almost surely, 2^11545315650 is an apocalyptic number.

11545315650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11545315650 is an abundant number, since it is smaller than the sum of its proper divisors (22292969454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11545315650 is a wasteful number, since it uses less digits than its factorization.

11545315650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2332416 (or 2332408 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 36.

The spelling of 11545315650 in words is "eleven billion, five hundred forty-five million, three hundred fifteen thousand, six hundred fifty".