20185185367020 has 48 divisors (see below), whose sum is σ = 58046046575328. Its totient is φ = 5237237283840.

The previous prime is 20185185366991. The next prime is 20185185367031. The reversal of 20185185367020 is 2076358158102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4546210701 + ... + 4546215140.

It is an arithmetic number, because the mean of its divisors is an integer number (1209292636986).

Almost surely, 2^{20185185367020} is an apocalyptic number.

20185185367020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20185185367020 is an abundant number, since it is smaller than the sum of its proper divisors (37860861208308).

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

20185185367020 is a wasteful number, since it uses less digits than its factorization.

20185185367020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9092425890 (or 9092425888 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 48.

The spelling of 20185185367020 in words is "twenty trillion, one hundred eighty-five billion, one hundred eighty-five million, three hundred sixty-seven thousand, twenty".