1601165226 has 64 divisors (see below), whose sum is σ = 3523766400. Its totient is φ = 483065856.

The previous prime is 1601165177. The next prime is 1601165261. The reversal of 1601165226 is 6225611061.

It is a junction number, because it is equal to n+sod(n) for n = 1601165193 and 1601165202.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 318186 + ... + 323178.

It is an arithmetic number, because the mean of its divisors is an integer number (55058850).

Almost surely, 2^1601165226 is an apocalyptic number.

1601165226 is an abundant number, since it is smaller than the sum of its proper divisors (1922601174).

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

1601165226 is a wasteful number, since it uses less digits than its factorization.

1601165226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5143.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1601165226 is about 40014.5626741065. The cubic root of 1601165226 is about 1169.8909548456.

Adding to 1601165226 its reverse (6225611061), we get a palindrome (7826776287).

The spelling of 1601165226 in words is "one billion, six hundred one million, one hundred sixty-five thousand, two hundred twenty-six".