20066911200 has 648 divisors, whose sum is σ = 85927344048. Its totient is φ = 4385525760.

The previous prime is 20066911159. The next prime is 20066911211. The reversal of 20066911200 is 211966002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 8113164 + ... + 8115636.

It is an arithmetic number, because the mean of its divisors is an integer number (132603926).

Almost surely, 2^20066911200 is an apocalyptic number.

20066911200 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 20066911200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42963672024).

20066911200 is an abundant number, since it is smaller than the sum of its proper divisors (65860432848).

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

20066911200 is a wasteful number, since it uses less digits than its factorization.

20066911200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2536 (or 2513 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The spelling of 20066911200 in words is "twenty billion, sixty-six million, nine hundred eleven thousand, two hundred".