2104560655 has 4 divisors (see below), whose sum is σ = 2525472792. Its totient is φ = 1683648520.

The previous prime is 2104560641. The next prime is 2104560659. The reversal of 2104560655 is 5560654012.

2104560655 = 11838² + 11839² + ... + 11852².

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

It is not a de Polignac number, because 2104560655 - 2¹¹ = 2104558607 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2104560655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104560659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210456061 + ... + 210456070.

It is an arithmetic number, because the mean of its divisors is an integer number (631368198).

Almost surely, 2^2104560655 is an apocalyptic number.

2104560655 is a deficient number, since it is larger than the sum of its proper divisors (420912137).

2104560655 is an equidigital number, since it uses as much as digits as its factorization.

2104560655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420912136.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 2104560655 is about 45875.4907875654. The cubic root of 2104560655 is about 1281.5055232427.

The spelling of 2104560655 in words is "two billion, one hundred four million, five hundred sixty thousand, six hundred fifty-five".