2206727821680 has 40 divisors (see below), whose sum is σ = 6840856247952. Its totient is φ = 588460752384.

The previous prime is 2206727821637. The next prime is 2206727821709. The reversal of 2206727821680 is 861287276022.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4597349389 + ... + 4597349868.

Almost surely, 2^{2206727821680} is an apocalyptic number.

2206727821680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2206727821680 is an abundant number, since it is smaller than the sum of its proper divisors (4634128426272).

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

2206727821680 is a wasteful number, since it uses less digits than its factorization.

2206727821680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9194699273 (or 9194699267 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 51.

The spelling of 2206727821680 in words is "two trillion, two hundred six billion, seven hundred twenty-seven million, eight hundred twenty-one thousand, six hundred eighty".