11205445090 has 32 divisors (see below), whose sum is σ = 23219478144. Its totient is φ = 3813820800.

The previous prime is 11205445061. The next prime is 11205445091. The reversal of 11205445090 is 9054450211.

It is not an unprimeable number, because it can be changed into a prime (11205445091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 574636 + ... + 593815.

It is an arithmetic number, because the mean of its divisors is an integer number (725608692).

Almost surely, 2^11205445090 is an apocalyptic number.

11205445090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11205445090 is an abundant number, since it is smaller than the sum of its proper divisors (12014033054).

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

11205445090 is a wasteful number, since it uses less digits than its factorization.

11205445090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168602.

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 11205445090 in words is "eleven billion, two hundred five million, four hundred forty-five thousand, ninety".