1663164456 has 32 divisors (see below), whose sum is σ = 4177629600. Its totient is φ = 551759040.

The previous prime is 1663164367. The next prime is 1663164463. The reversal of 1663164456 is 6544613661.

It is a super-2 number, since 2×1663164456² = 5532232015403551872, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159151 + ... + 169278.

It is an arithmetic number, because the mean of its divisors is an integer number (130550925).

Almost surely, 2^1663164456 is an apocalyptic number.

It is an amenable number.

1663164456 is an abundant number, since it is smaller than the sum of its proper divisors (2514465144).

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

1663164456 is a wasteful number, since it uses less digits than its factorization.

1663164456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328649 (or 328645 counting only the distinct ones).

The product of its digits is 311040, while the sum is 42.

The square root of 1663164456 is about 40781.9133440303. The cubic root of 1663164456 is about 1184.8000531452.

The spelling of 1663164456 in words is "one billion, six hundred sixty-three million, one hundred sixty-four thousand, four hundred fifty-six".