1662223456 has 24 divisors (see below), whose sum is σ = 3274689600. Its totient is φ = 830556288.

The previous prime is 1662223429. The next prime is 1662223457. The reversal of 1662223456 is 6543222661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662223457) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 33570 + ... + 66718.

It is an arithmetic number, because the mean of its divisors is an integer number (136445400).

Almost surely, 2^1662223456 is an apocalyptic number.

1662223456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1662223456 is a deficient number, since it is larger than the sum of its proper divisors (1612466144).

1662223456 is a wasteful number, since it uses less digits than its factorization.

1662223456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34726 (or 34718 counting only the distinct ones).

The product of its digits is 103680, while the sum is 37.

The square root of 1662223456 is about 40770.3747346036. The cubic root of 1662223456 is about 1184.5765620812.

The spelling of 1662223456 in words is "one billion, six hundred sixty-two million, two hundred twenty-three thousand, four hundred fifty-six".