641646363646146 has 32 divisors (see below), whose sum is σ = 1387343488973760. Its totient is φ = 197148811588416.

The previous prime is 641646363646133. The next prime is 641646363646151.

641646363646146 is nontrivially palindromic in base 10.

641646363646146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76060494081 + ... + 76060502516.

It is an arithmetic number, because the mean of its divisors is an integer number (43354484030430).

Almost surely, 2^{641646363646146} is an apocalyptic number.

641646363646146 is an abundant number, since it is smaller than the sum of its proper divisors (745697125327614).

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

641646363646146 is a wasteful number, since it uses less digits than its factorization.

641646363646146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152120996658.

The product of its digits is 644972544, while the sum is 66.

The spelling of 641646363646146 in words is "six hundred forty-one trillion, six hundred forty-six billion, three hundred sixty-three million, six hundred forty-six thousand, one hundred forty-six".