1601646222 has 32 divisors (see below), whose sum is σ = 3579738624. Its totient is φ = 473508800.

The previous prime is 1601646203. The next prime is 1601646223. The reversal of 1601646222 is 2226461061.

It is a self number, because there is not a number n which added to its sum of digits gives 1601646222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601646223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 293238 + ... + 298649.

It is an arithmetic number, because the mean of its divisors is an integer number (111866832).

Almost surely, 2^1601646222 is an apocalyptic number.

1601646222 is an abundant number, since it is smaller than the sum of its proper divisors (1978092402).

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

1601646222 is a wasteful number, since it uses less digits than its factorization.

1601646222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591944.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 1601646222 is about 40020.5724846609. The cubic root of 1601646222 is about 1170.0080896511.

The spelling of 1601646222 in words is "one billion, six hundred one million, six hundred forty-six thousand, two hundred twenty-two".