20261355016446 has 48 divisors (see below), whose sum is σ = 44295983222400. Its totient is φ = 6693073794000.

The previous prime is 20261355016391. The next prime is 20261355016453. The reversal of 20261355016446 is 64461055316202.

20261355016446 is a `hidden beast` number, since 2 + 0 + 2 + 6 + 135 + 501 + 6 + 4 + 4 + 6 = 666.

It is a super-3 number, since 3×20261355016446³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10368720 + ... + 12166883.

It is an arithmetic number, because the mean of its divisors is an integer number (922832983800).

Almost surely, 2^{20261355016446} is an apocalyptic number.

20261355016446 is an abundant number, since it is smaller than the sum of its proper divisors (24034628205954).

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

20261355016446 is a wasteful number, since it uses less digits than its factorization.

20261355016446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22536061 (or 22536058 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 20261355016446 in words is "twenty trillion, two hundred sixty-one billion, three hundred fifty-five million, sixteen thousand, four hundred forty-six".