11205650420 has 24 divisors (see below), whose sum is σ = 23534777448. Its totient is φ = 4481705600.

The previous prime is 11205650369. The next prime is 11205650437. The reversal of 11205650420 is 2405650211.

It can be written as a sum of positive squares in 4 ways, for example, as 11587216 + 11194063204 = 3404^2 + 105802^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11205650420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156830 + ... + 216810.

It is an arithmetic number, because the mean of its divisors is an integer number (980615727).

Almost surely, 2^11205650420 is an apocalyptic number.

11205650420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11205650420 is an abundant number, since it is smaller than the sum of its proper divisors (12329127028).

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

11205650420 is a wasteful number, since it uses less digits than its factorization.

11205650420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69331 (or 69329 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The spelling of 11205650420 in words is "eleven billion, two hundred five million, six hundred fifty thousand, four hundred twenty".