2641606201565 has 8 divisors (see below), whose sum is σ = 3171019408128. Its totient is φ = 2112556983760.

The previous prime is 2641606201561. The next prime is 2641606201571. The reversal of 2641606201565 is 5651026061462.

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

It is not a de Polignac number, because 2641606201565 - 2² = 2641606201561 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2641606201561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90981221 + ... + 91010250.

It is an arithmetic number, because the mean of its divisors is an integer number (396377426016).

Almost surely, 2^{2641606201565} is an apocalyptic number.

It is an amenable number.

2641606201565 is a deficient number, since it is larger than the sum of its proper divisors (529413206563).

2641606201565 is a wasteful number, since it uses less digits than its factorization.

2641606201565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181994379.

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 2641606201565 in words is "two trillion, six hundred forty-one billion, six hundred six million, two hundred one thousand, five hundred sixty-five".