2644622016 has 56 divisors (see below), whose sum is σ = 7167914544. Its totient is φ = 860037120.

The previous prime is 2644621981. The next prime is 2644622021. The reversal of 2644622016 is 6102264462.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160105 + ... + 175848.

It is an arithmetic number, because the mean of its divisors is an integer number (127998474).

Almost surely, 2^2644622016 is an apocalyptic number.

It is an amenable number.

2644622016 is an abundant number, since it is smaller than the sum of its proper divisors (4523292528).

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

2644622016 is a wasteful number, since it uses less digits than its factorization.

2644622016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336009 (or 335999 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 2644622016 is about 51425.8885776415. Note that the first 3 decimals coincide. The cubic root of 2644622016 is about 1382.8907436032.

Adding to 2644622016 its reverse (6102264462), we get a palindrome (8746886478).

The spelling of 2644622016 in words is "two billion, six hundred forty-four million, six hundred twenty-two thousand, sixteen".