1663934952 has 16 divisors (see below), whose sum is σ = 4159837440. Its totient is φ = 554644976.

The previous prime is 1663934929. The next prime is 1663934953. The reversal of 1663934952 is 2594393661.

It is not an unprimeable number, because it can be changed into a prime (1663934953) 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, 34665288 + ... + 34665335.

It is an arithmetic number, because the mean of its divisors is an integer number (259989840).

Almost surely, 2^1663934952 is an apocalyptic number.

1663934952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1663934952 is an abundant number, since it is smaller than the sum of its proper divisors (2495902488).

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

1663934952 is a wasteful number, since it uses less digits than its factorization.

1663934952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69330632 (or 69330628 counting only the distinct ones).

The product of its digits is 1049760, while the sum is 48.

The square root of 1663934952 is about 40791.3587908027. The cubic root of 1663934952 is about 1184.9829861005.

The spelling of 1663934952 in words is "one billion, six hundred sixty-three million, nine hundred thirty-four thousand, nine hundred fifty-two".