2655221694 has 8 divisors (see below), whose sum is σ = 5310443400. Its totient is φ = 885073896.

The previous prime is 2655221693. The next prime is 2655221717. The reversal of 2655221694 is 4961225562.

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

2655221694 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2655221693) 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, 221268469 + ... + 221268480.

It is an arithmetic number, because the mean of its divisors is an integer number (663805425).

Almost surely, 2^2655221694 is an apocalyptic number.

2655221694 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2655221694 is a wasteful number, since it uses less digits than its factorization.

2655221694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442536954.

The product of its digits is 259200, while the sum is 42.

The square root of 2655221694 is about 51528.8433209984. The cubic root of 2655221694 is about 1384.7358285316.

The spelling of 2655221694 in words is "two billion, six hundred fifty-five million, two hundred twenty-one thousand, six hundred ninety-four".