1601001006 has 32 divisors (see below), whose sum is σ = 3511219968. Its totient is φ = 482634240.

The previous prime is 1601001001. The next prime is 1601001013. The reversal of 1601001006 is 6001001061.

It is a congruent 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 (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50106 + ... + 75581.

It is an arithmetic number, because the mean of its divisors is an integer number (109725624).

Almost surely, 2^1601001006 is an apocalyptic number.

1601001006 is an abundant number, since it is smaller than the sum of its proper divisors (1910218962).

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

1601001006 is a wasteful number, since it uses less digits than its factorization.

1601001006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125896.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1601001006 is about 40012.5106185553. The cubic root of 1601001006 is about 1169.8509577114.

Adding to 1601001006 its reverse (6001001061), we get a palindrome (7602002067).

The spelling of 1601001006 in words is "one billion, six hundred one million, one thousand, six".