2206868331780 has 384 divisors, whose sum is σ = 8014110720000. Its totient is φ = 503965203840.

The previous prime is 2206868331769. The next prime is 2206868331781. The reversal of 2206868331780 is 871338686022.

2206868331780 is a `hidden beast` number, since 220 + 6 + 8 + 6 + 8 + 331 + 7 + 80 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (2206868331781) by changing a digit.

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 127 ways as a sum of consecutive naturals, for example, 228000981 + ... + 228010659.

It is an arithmetic number, because the mean of its divisors is an integer number (20870080000).

Almost surely, 2^{2206868331780} is an apocalyptic number.

2206868331780 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 2206868331780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4007055360000).

2206868331780 is an abundant number, since it is smaller than the sum of its proper divisors (5807242388220).

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

2206868331780 is a wasteful number, since it uses less digits than its factorization.

2206868331780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10949 (or 10927 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 2206868331780 in words is "two trillion, two hundred six billion, eight hundred sixty-eight million, three hundred thirty-one thousand, seven hundred eighty".