20466653734720 has 224 divisors, whose sum is σ = 50247672814080. Its totient is φ = 7936443678720.

The previous prime is 20466653734699. The next prime is 20466653734739. The reversal of 20466653734720 is 2743735666402.

It is a super-3 number, since 3×20466653734720³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 691870330 + ... + 691899910.

It is an arithmetic number, because the mean of its divisors is an integer number (224319967920).

Almost surely, 2^{20466653734720} is an apocalyptic number.

20466653734720 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 20466653734720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25123836407040).

20466653734720 is an abundant number, since it is smaller than the sum of its proper divisors (29781019079360).

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

20466653734720 is a wasteful number, since it uses less digits than its factorization.

20466653734720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30081 (or 30071 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 55.

The spelling of 20466653734720 in words is "twenty trillion, four hundred sixty-six billion, six hundred fifty-three million, seven hundred thirty-four thousand, seven hundred twenty".