646141646101 has 16 divisors (see below), whose sum is σ = 742434422400. Its totient is φ = 550847384640.

The previous prime is 646141646077. The next prime is 646141646123. The reversal of 646141646101 is 101646141646.

It is not a de Polignac number, because 646141646101 - 2⁵ = 646141646069 is a prime.

It is a super-2 number, since 2×646141646101² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646141646131) 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 15 ways as a sum of consecutive naturals, for example, 4312950 + ... + 4460248.

It is an arithmetic number, because the mean of its divisors is an integer number (46402151400).

Almost surely, 2^646141646101 is an apocalyptic number.

It is an amenable number.

646141646101 is a deficient number, since it is larger than the sum of its proper divisors (96292776299).

646141646101 is a wasteful number, since it uses less digits than its factorization.

646141646101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150684.

The product of its (nonzero) digits is 82944, while the sum is 40.

Adding to 646141646101 its reverse (101646141646), we get a palindrome (747787787747).

The spelling of 646141646101 in words is "six hundred forty-six billion, one hundred forty-one million, six hundred forty-six thousand, one hundred one".