20053421453016 has 192 divisors, whose sum is σ = 66054913404480. Its totient is φ = 5365143060480.

The previous prime is 20053421452943. The next prime is 20053421453029. The reversal of 20053421453016 is 61035412435002.

20053421453016 is a `hidden beast` number, since 2 + 0 + 0 + 5 + 342 + 1 + 4 + 5 + 301 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4252465 + ... + 7628256.

It is an arithmetic number, because the mean of its divisors is an integer number (344036007315).

Almost surely, 2^{20053421453016} is an apocalyptic number.

It is an amenable number.

20053421453016 is an abundant number, since it is smaller than the sum of its proper divisors (46001491951464).

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

20053421453016 is a wasteful number, since it uses less digits than its factorization.

20053421453016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11880954 (or 11880947 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 20053421453016 its reverse (61035412435002), we get a palindrome (81088833888018).

The spelling of 20053421453016 in words is "twenty trillion, fifty-three billion, four hundred twenty-one million, four hundred fifty-three thousand, sixteen".