1601001008 has 20 divisors (see below), whose sum is σ = 3106194048. Its totient is φ = 799402560.

The previous prime is 1601001001. The next prime is 1601001013. The reversal of 1601001008 is 8001001061.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1601001001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56528 + ... + 79983.

Almost surely, 2^1601001008 is an apocalyptic number.

It is an amenable number.

1601001008 is a deficient number, since it is larger than the sum of its proper divisors (1505193040).

1601001008 is a wasteful number, since it uses less digits than its factorization.

1601001008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137252 (or 137246 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 1601001008 is about 40012.5106435475. The cubic root of 1601001008 is about 1169.8509581986.

Adding to 1601001008 its reverse (8001001061), we get a palindrome (9602002069).

The spelling of 1601001008 in words is "one billion, six hundred one million, one thousand, eight".