641002462563065 has 8 divisors (see below), whose sum is σ = 769203096423048. Its totient is φ = 512801875818880.

The previous prime is 641002462563049. The next prime is 641002462563091. The reversal of 641002462563065 is 560365264200146.

It can be written as a sum of positive squares in 4 ways, for example, as 9931189601641 + 631071272961424 = 3151379^2 + 25121132^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 641002462563065 - 2⁴ = 641002462563049 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35146685 + ... + 50172645.

It is an arithmetic number, because the mean of its divisors is an integer number (96150387052881).

Almost surely, 2^{641002462563065} is an apocalyptic number.

It is an amenable number.

641002462563065 is a deficient number, since it is larger than the sum of its proper divisors (128200633859983).

641002462563065 is a wasteful number, since it uses less digits than its factorization.

641002462563065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23557899.

The product of its (nonzero) digits is 6220800, while the sum is 50.

The spelling of 641002462563065 in words is "six hundred forty-one trillion, two billion, four hundred sixty-two million, five hundred sixty-three thousand, sixty-five".