1662247016990 has 48 divisors (see below), whose sum is σ = 3532490166672. Its totient is φ = 561407083776.

The previous prime is 1662247016951. The next prime is 1662247017001. The reversal of 1662247016990 is 996107422661.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25283147 + ... + 25348806.

It is an arithmetic number, because the mean of its divisors is an integer number (73593545139).

Almost surely, 2^{1662247016990} is an apocalyptic number.

1662247016990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1662247016990 is an abundant number, since it is smaller than the sum of its proper divisors (1870243149682).

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

1662247016990 is a wasteful number, since it uses less digits than its factorization.

1662247016990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50632041 (or 50632034 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 53.

The spelling of 1662247016990 in words is "one trillion, six hundred sixty-two billion, two hundred forty-seven million, sixteen thousand, nine hundred ninety".