2662445563 has 4 divisors (see below), whose sum is σ = 2662560288. Its totient is φ = 2662330840.

The previous prime is 2662445551. The next prime is 2662445581. The reversal of 2662445563 is 3655442662.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2662445563 - 2²⁵ = 2628891131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2662445363) 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, 8908 + ... + 73513.

It is an arithmetic number, because the mean of its divisors is an integer number (665640072).

Almost surely, 2^2662445563 is an apocalyptic number.

2662445563 is a deficient number, since it is larger than the sum of its proper divisors (114725).

2662445563 is an equidigital number, since it uses as much as digits as its factorization.

2662445563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114724.

The product of its digits is 1036800, while the sum is 43.

The square root of 2662445563 is about 51598.8911024258. The cubic root of 2662445563 is about 1385.9904748410.

The spelling of 2662445563 in words is "two billion, six hundred sixty-two million, four hundred forty-five thousand, five hundred sixty-three".