1663223987210 has 64 divisors (see below), whose sum is σ = 3341266588800. Its totient is φ = 592395835392.

The previous prime is 1663223987197. The next prime is 1663223987213. The reversal of 1663223987210 is 127893223661.

It is not an unprimeable number, because it can be changed into a prime (1663223987213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2038574 + ... + 2735366.

It is an arithmetic number, because the mean of its divisors is an integer number (52207290450).

Almost surely, 2^{1663223987210} is an apocalyptic number.

1663223987210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1663223987210 is an abundant number, since it is smaller than the sum of its proper divisors (1678042601590).

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

1663223987210 is a wasteful number, since it uses less digits than its factorization.

1663223987210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697575.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 1663223987210 in words is "one trillion, six hundred sixty-three billion, two hundred twenty-three million, nine hundred eighty-seven thousand, two hundred ten".