1669006549968 has 40 divisors (see below), whose sum is σ = 4318774372416. Its totient is φ = 555409824000.

The previous prime is 1669006549967. The next prime is 1669006550023. The reversal of 1669006549968 is 8699456009661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1669006549967) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 28898748 + ... + 28956443.

Almost surely, 2^{1669006549968} is an apocalyptic number.

It is an amenable number.

1669006549968 is an abundant number, since it is smaller than the sum of its proper divisors (2649767822448).

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

1669006549968 is a wasteful number, since it uses less digits than its factorization.

1669006549968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57855803 (or 57855797 counting only the distinct ones).

The product of its (nonzero) digits is 151165440, while the sum is 69.

The spelling of 1669006549968 in words is "one trillion, six hundred sixty-nine billion, six million, five hundred forty-nine thousand, nine hundred sixty-eight".