20003555436146 has 32 divisors (see below), whose sum is σ = 31865824569600. Its totient is φ = 9385157433600.

The previous prime is 20003555436107. The next prime is 20003555436187. The reversal of 20003555436146 is 64163455530002.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20003555436097 and 20003555436106.

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, 87825191 + ... + 88052661.

It is an arithmetic number, because the mean of its divisors is an integer number (995807017800).

Almost surely, 2^{20003555436146} is an apocalyptic number.

20003555436146 is a deficient number, since it is larger than the sum of its proper divisors (11862269133454).

20003555436146 is a wasteful number, since it uses less digits than its factorization.

20003555436146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235250.

The product of its (nonzero) digits is 1296000, while the sum is 44.

The spelling of 20003555436146 in words is "twenty trillion, three billion, five hundred fifty-five million, four hundred thirty-six thousand, one hundred forty-six".