641326623146 has 96 divisors (see below), whose sum is σ = 1089835462800. Its totient is φ = 282748928000.

The previous prime is 641326623137. The next prime is 641326623173.

641326623146 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 8 ways, for example, as 190716497521 + 450610125625 = 436711^2 + 671275^2 .

It is a super-2 number, since 2×641326623146² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 641326623097 and 641326623106.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 245811890 + ... + 245814498.

Almost surely, 2^641326623146 is an apocalyptic number.

641326623146 is a deficient number, since it is larger than the sum of its proper divisors (448508839654).

641326623146 is a wasteful number, since it uses less digits than its factorization.

641326623146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2936 (or 2925 counting only the distinct ones).

The product of its digits is 746496, while the sum is 44.

The spelling of 641326623146 in words is "six hundred forty-one billion, three hundred twenty-six million, six hundred twenty-three thousand, one hundred forty-six".