1611996226 has 8 divisors (see below), whose sum is σ = 2418171084. Its totient is φ = 805939200.

The previous prime is 1611996223. The next prime is 1611996227. The reversal of 1611996226 is 6226991161.

It can be written as a sum of positive squares in 2 ways, for example, as 1127952225 + 484044001 = 33585^2 + 22001^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1611996223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24546 + ... + 61858.

Almost surely, 2^1611996226 is an apocalyptic number.

1611996226 is a deficient number, since it is larger than the sum of its proper divisors (806174858).

1611996226 is a wasteful number, since it uses less digits than its factorization.

1611996226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58916.

The product of its digits is 69984, while the sum is 43.

The square root of 1611996226 is about 40149.6728006593. The cubic root of 1611996226 is about 1172.5229182512.

The spelling of 1611996226 in words is "one billion, six hundred eleven million, nine hundred ninety-six thousand, two hundred twenty-six".