20368655032170 has 64 divisors (see below), whose sum is σ = 49809696923520. Its totient is φ = 5328882494208.

The previous prime is 20368655032169. The next prime is 20368655032189. The reversal of 20368655032170 is 7123055686302.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31446012 + ... + 32087208.

It is an arithmetic number, because the mean of its divisors is an integer number (778276514430).

Almost surely, 2^{20368655032170} is an apocalyptic number.

20368655032170 is an abundant number, since it is smaller than the sum of its proper divisors (29441041891350).

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

20368655032170 is a wasteful number, since it uses less digits than its factorization.

20368655032170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661239.

The product of its (nonzero) digits is 1814400, while the sum is 48.

The spelling of 20368655032170 in words is "twenty trillion, three hundred sixty-eight billion, six hundred fifty-five million, thirty-two thousand, one hundred seventy".