1669653120270 has 16 divisors (see below), whose sum is σ = 4007167488720. Its totient is φ = 445240832064.

The previous prime is 1669653120221. The next prime is 1669653120271. The reversal of 1669653120270 is 720213569661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1669653120271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27827551975 + ... + 27827552034.

It is an arithmetic number, because the mean of its divisors is an integer number (250447968045).

Almost surely, 2^{1669653120270} is an apocalyptic number.

1669653120270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1669653120270 is an abundant number, since it is smaller than the sum of its proper divisors (2337514368450).

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

1669653120270 is a wasteful number, since it uses less digits than its factorization.

1669653120270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55655104019.

The product of its (nonzero) digits is 816480, while the sum is 48.

The spelling of 1669653120270 in words is "one trillion, six hundred sixty-nine billion, six hundred fifty-three million, one hundred twenty thousand, two hundred seventy".