2211641536 has 56 divisors (see below), whose sum is σ = 4735254944. Its totient is φ = 1018828800.

The previous prime is 2211641519. The next prime is 2211641561. The reversal of 2211641536 is 6351461122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2211641498 and 2211641507.

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, 497821 + ... + 502243.

It is an arithmetic number, because the mean of its divisors is an integer number (84558124).

Almost surely, 2^2211641536 is an apocalyptic number.

2211641536 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2211641536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2367627472).

2211641536 is an abundant number, since it is smaller than the sum of its proper divisors (2523613408).

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

2211641536 is a wasteful number, since it uses less digits than its factorization.

2211641536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5049 (or 5039 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 2211641536 is about 47028.0930508563. The cubic root of 2211641536 is about 1302.8814853137.

The spelling of 2211641536 in words is "two billion, two hundred eleven million, six hundred forty-one thousand, five hundred thirty-six".