20554772034720 has 1536 divisors, whose sum is σ = 85610788945920. Its totient is φ = 4019088015360.

The previous prime is 20554772034701. The next prime is 20554772034721. The reversal of 20554772034720 is 2743027745502.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 20554772034720.

It is not an unprimeable number, because it can be changed into a prime (20554772034721) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 22366454421 + ... + 22366455339.

It is an arithmetic number, because the mean of its divisors is an integer number (55736190720).

Almost surely, 2^{20554772034720} is an apocalyptic number.

20554772034720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20554772034720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42805394472960).

20554772034720 is an abundant number, since it is smaller than the sum of its proper divisors (65056016911200).

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

20554772034720 is a wasteful number, since it uses less digits than its factorization.

20554772034720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378 (or 1370 counting only the distinct ones).

The product of its (nonzero) digits is 3292800, while the sum is 48.

The spelling of 20554772034720 in words is "twenty trillion, five hundred fifty-four billion, seven hundred seventy-two million, thirty-four thousand, seven hundred twenty".