2641345601605 has 8 divisors (see below), whose sum is σ = 3169629711864. Its totient is φ = 2113066488000.

The previous prime is 2641345601579. The next prime is 2641345601647. The reversal of 2641345601605 is 5061065431462.

It can be written as a sum of positive squares in 4 ways, for example, as 1364712267681 + 1276633333924 = 1168209^2 + 1129882^2 .

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

It is not a de Polignac number, because 2641345601605 - 2¹⁵ = 2641345568837 is a prime.

It is a Duffinian number.

It is a congruent 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, 33555 + ... + 2298655.

It is an arithmetic number, because the mean of its divisors is an integer number (396203713983).

Almost surely, 2^{2641345601605} is an apocalyptic number.

It is an amenable number.

2641345601605 is a deficient number, since it is larger than the sum of its proper divisors (528284110259).

2641345601605 is a wasteful number, since it uses less digits than its factorization.

2641345601605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2498327.

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 2641345601605 in words is "two trillion, six hundred forty-one billion, three hundred forty-five million, six hundred one thousand, six hundred five".