20546512446 has 16 divisors (see below), whose sum is σ = 41094777600. Its totient is φ = 6848545368.

The previous prime is 20546512417. The next prime is 20546512471. The reversal of 20546512446 is 64421564502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117675 + ... + 234393.

It is an arithmetic number, because the mean of its divisors is an integer number (2568423600).

Almost surely, 2^20546512446 is an apocalyptic number.

20546512446 is an abundant number, since it is smaller than the sum of its proper divisors (20548265154).

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

20546512446 is a wasteful number, since it uses less digits than its factorization.

20546512446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146063.

The product of its (nonzero) digits is 230400, while the sum is 39.

The spelling of 20546512446 in words is "twenty billion, five hundred forty-six million, five hundred twelve thousand, four hundred forty-six".