11533570450 has 24 divisors (see below), whose sum is σ = 21461946660. Its totient is φ = 4611384000.

The previous prime is 11533570439. The next prime is 11533570459. The reversal of 11533570450 is 5407533511.

11533570450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 9495138249 + 2038432201 = 97443^2 + 45149^2 .

It is a super-2 number, since 2×11533570450² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11533570459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65500 + ... + 165400.

Almost surely, 2^11533570450 is an apocalyptic number.

11533570450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11533570450 is a deficient number, since it is larger than the sum of its proper divisors (9928376210).

11533570450 is a wasteful number, since it uses less digits than its factorization.

11533570450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102222 (or 102217 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 34.

The spelling of 11533570450 in words is "eleven billion, five hundred thirty-three million, five hundred seventy thousand, four hundred fifty".