2194661196 has 576 divisors, whose sum is σ = 7936588800. Its totient is φ = 517321728.

The previous prime is 2194661171. The next prime is 2194661281. The reversal of 2194661196 is 6911664912.

It is a happy number.

2194661196 is a `hidden beast` number, since 21 + 9 + 4 + 6 + 611 + 9 + 6 = 666.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 30063816 + ... + 30063888.

It is an arithmetic number, because the mean of its divisors is an integer number (13778800).

Almost surely, 2^2194661196 is an apocalyptic number.

2194661196 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 2194661196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3968294400).

2194661196 is an abundant number, since it is smaller than the sum of its proper divisors (5741927604).

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

2194661196 is a wasteful number, since it uses less digits than its factorization.

2194661196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 140 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 2194661196 is about 46847.2111870066. The cubic root of 2194661196 is about 1299.5385336467.

The spelling of 2194661196 in words is "two billion, one hundred ninety-four million, six hundred sixty-one thousand, one hundred ninety-six".