2206673661672 has 80 divisors (see below), whose sum is σ = 6227910849600. Its totient is φ = 729942913440.

The previous prime is 2206673661659. The next prime is 2206673661809. The reversal of 2206673661672 is 2761663766022.

2206673661672 is a `hidden beast` number, since 2 + 206 + 6 + 7 + 366 + 1 + 6 + 72 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12912672 + ... + 13082447.

It is an arithmetic number, because the mean of its divisors is an integer number (77848885620).

Almost surely, 2^{2206673661672} is an apocalyptic number.

It is an amenable number.

2206673661672 is an abundant number, since it is smaller than the sum of its proper divisors (4021237187928).

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

2206673661672 is a wasteful number, since it uses less digits than its factorization.

2206673661672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25995268 (or 25995255 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 54.

The spelling of 2206673661672 in words is "two trillion, two hundred six billion, six hundred seventy-three million, six hundred sixty-one thousand, six hundred seventy-two".