20746548253446 has 32 divisors (see below), whose sum is σ = 42088518286848. Its totient is φ = 6816882386400.

The previous prime is 20746548253433. The next prime is 20746548253573. The reversal of 20746548253446 is 64435284564702.

It is a self number, because there is not a number n which added to its sum of digits gives 20746548253446.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 75270430 + ... + 75545553.

It is an arithmetic number, because the mean of its divisors is an integer number (1315266196464).

Almost surely, 2^{20746548253446} is an apocalyptic number.

20746548253446 is an abundant number, since it is smaller than the sum of its proper divisors (21341970033402).

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

20746548253446 is a wasteful number, since it uses less digits than its factorization.

20746548253446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150816316.

The product of its (nonzero) digits is 154828800, while the sum is 60.

The spelling of 20746548253446 in words is "twenty trillion, seven hundred forty-six billion, five hundred forty-eight million, two hundred fifty-three thousand, four hundred forty-six".