2080864360561 has 16 divisors (see below), whose sum is σ = 2434759701120. Its totient is φ = 1741553124480.

The previous prime is 2080864360501. The next prime is 2080864360571. The reversal of 2080864360561 is 1650634680802.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2080864360561 - 2²⁷ = 2080730142833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2080864360501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17726971 + ... + 17843968.

It is an arithmetic number, because the mean of its divisors is an integer number (152172481320).

Almost surely, 2^{2080864360561} is an apocalyptic number.

It is an amenable number.

2080864360561 is a deficient number, since it is larger than the sum of its proper divisors (353895340559).

2080864360561 is a wasteful number, since it uses less digits than its factorization.

2080864360561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35571144.

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 2080864360561 in words is "two trillion, eighty billion, eight hundred sixty-four million, three hundred sixty thousand, five hundred sixty-one".