1663395212 has 6 divisors (see below), whose sum is σ = 2910941628. Its totient is φ = 831697604.

The previous prime is 1663395211. The next prime is 1663395221. The reversal of 1663395212 is 2125933661.

It is not an unprimeable number, because it can be changed into a prime (1663395211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 207924398 + ... + 207924405.

It is an arithmetic number, because the mean of its divisors is an integer number (485156938).

Almost surely, 2^1663395212 is an apocalyptic number.

It is an amenable number.

1663395212 is a deficient number, since it is larger than the sum of its proper divisors (1247546416).

1663395212 is a wasteful number, since it uses less digits than its factorization.

1663395212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415848807 (or 415848805 counting only the distinct ones).

The product of its digits is 58320, while the sum is 38.

The square root of 1663395212 is about 40784.7423922231. The cubic root of 1663395212 is about 1184.8548456978.

The spelling of 1663395212 in words is "one billion, six hundred sixty-three million, three hundred ninety-five thousand, two hundred twelve".