1669993620276 has 24 divisors (see below), whose sum is σ = 3896769026304. Its totient is φ = 556647790720.

The previous prime is 1669993620259. The next prime is 1669993620289. The reversal of 1669993620276 is 6720263999661.

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 7 ways as a sum of consecutive naturals, for example, 1674885 + ... + 2478956.

It is an arithmetic number, because the mean of its divisors is an integer number (162365376096).

Almost surely, 2^{1669993620276} is an apocalyptic number.

It is an amenable number.

1669993620276 is an abundant number, since it is smaller than the sum of its proper divisors (2226775406028).

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

1669993620276 is a wasteful number, since it uses less digits than its factorization.

1669993620276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4187351 (or 4187349 counting only the distinct ones).

The product of its (nonzero) digits is 79361856, while the sum is 66.

The spelling of 1669993620276 in words is "one trillion, six hundred sixty-nine billion, nine hundred ninety-three million, six hundred twenty thousand, two hundred seventy-six".