20616914473056 has 192 divisors, whose sum is σ = 65602968076800. Its totient is φ = 6247197964800.

The previous prime is 20616914473031. The next prime is 20616914473081. The reversal of 20616914473056 is 65037441961602.

It is a happy number.

20616914473056 is a `hidden beast` number, since 2 + 0 + 6 + 169 + 1 + 4 + 473 + 0 + 5 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (20616914473031) and next prime (20616914473081).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 20616914472993 and 20616914473011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 204846426 + ... + 204947046.

It is an arithmetic number, because the mean of its divisors is an integer number (341682125400).

Almost surely, 2^{20616914473056} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20616914473056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32801484038400).

20616914473056 is an abundant number, since it is smaller than the sum of its proper divisors (44986053603744).

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

20616914473056 is a wasteful number, since it uses less digits than its factorization.

20616914473056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122210 (or 122196 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 20616914473056 in words is "twenty trillion, six hundred sixteen billion, nine hundred fourteen million, four hundred seventy-three thousand, fifty-six".