1669770890896 has 20 divisors (see below), whose sum is σ = 3235722196284. Its totient is φ = 834745808000.

The previous prime is 1669770890881. The next prime is 1669770890899. The reversal of 1669770890896 is 6980980779661.

It can be written as a sum of positive squares in 2 ways, for example, as 534770438400 + 1135000452496 = 731280^2 + 1065364^2 .

It is not an unprimeable number, because it can be changed into a prime (1669770890899) 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 3 ways as a sum of consecutive naturals, for example, 8628655 + ... + 8820046.

Almost surely, 2^{1669770890896} is an apocalyptic number.

1669770890896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1669770890896 is a deficient number, since it is larger than the sum of its proper divisors (1565951305388).

1669770890896 is a wasteful number, since it uses less digits than its factorization.

1669770890896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17454690 (or 17454684 counting only the distinct ones).

The product of its (nonzero) digits is 493807104, while the sum is 76.

The spelling of 1669770890896 in words is "one trillion, six hundred sixty-nine billion, seven hundred seventy million, eight hundred ninety thousand, eight hundred ninety-six".