641205643114 has 4 divisors (see below), whose sum is σ = 961808464674. Its totient is φ = 320602821556.

The previous prime is 641205643087. The next prime is 641205643123. The reversal of 641205643114 is 411346502146.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 482423317489 + 158782325625 = 694567^2 + 398475^2 .

It is a super-2 number, since 2×641205643114² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160301410777 + ... + 160301410780.

Almost surely, 2^641205643114 is an apocalyptic number.

641205643114 is a deficient number, since it is larger than the sum of its proper divisors (320602821560).

641205643114 is a wasteful number, since it uses less digits than its factorization.

641205643114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320602821559.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 641205643114 in words is "six hundred forty-one billion, two hundred five million, six hundred forty-three thousand, one hundred fourteen".