2663625164 has 6 divisors (see below), whose sum is σ = 4661344044. Its totient is φ = 1331812580.

The previous prime is 2663625163. The next prime is 2663625199. The reversal of 2663625164 is 4615263662.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2663625163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332953142 + ... + 332953149.

It is an arithmetic number, because the mean of its divisors is an integer number (776890674).

Almost surely, 2^2663625164 is an apocalyptic number.

It is an amenable number.

2663625164 is a deficient number, since it is larger than the sum of its proper divisors (1997718880).

2663625164 is a wasteful number, since it uses less digits than its factorization.

2663625164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665906295 (or 665906293 counting only the distinct ones).

The product of its digits is 311040, while the sum is 41.

The square root of 2663625164 is about 51610.3203245242. The cubic root of 2663625164 is about 1386.1951330922.

The spelling of 2663625164 in words is "two billion, six hundred sixty-three million, six hundred twenty-five thousand, one hundred sixty-four".