20578533035412 has 96 divisors (see below), whose sum is σ = 54796841366400. Its totient is φ = 5953236889600.

The previous prime is 20578533035299. The next prime is 20578533035419. The reversal of 20578533035412 is 21453033587502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20578533035419) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29860389 + ... + 30541772.

It is an arithmetic number, because the mean of its divisors is an integer number (570800430900).

Almost surely, 2^{20578533035412} is an apocalyptic number.

20578533035412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20578533035412 is an abundant number, since it is smaller than the sum of its proper divisors (34218308330988).

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

20578533035412 is a wasteful number, since it uses less digits than its factorization.

20578533035412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60402297 (or 60402295 counting only the distinct ones).

The product of its (nonzero) digits is 3024000, while the sum is 48.

The spelling of 20578533035412 in words is "twenty trillion, five hundred seventy-eight billion, five hundred thirty-three million, thirty-five thousand, four hundred twelve".