19669185841220 has 24 divisors (see below), whose sum is σ = 42265878414144. Its totient is φ = 7684705165536.

The previous prime is 19669185841211. The next prime is 19669185841309. The reversal of 19669185841220 is 2214858196691.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11435572304 + ... + 11435574023.

It is an arithmetic number, because the mean of its divisors is an integer number (1761078267256).

Almost surely, 2^{19669185841220} is an apocalyptic number.

19669185841220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19669185841220 is an abundant number, since it is smaller than the sum of its proper divisors (22596692572924).

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

19669185841220 is a wasteful number, since it uses less digits than its factorization.

19669185841220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22871146379 (or 22871146377 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 62.

The spelling of 19669185841220 in words is "nineteen trillion, six hundred sixty-nine billion, one hundred eighty-five million, eight hundred forty-one thousand, two hundred twenty".