2206620660664 has 64 divisors (see below), whose sum is σ = 4855624704000. Its totient is φ = 920545202304.

The previous prime is 2206620660637. The next prime is 2206620660691. The reversal of 2206620660664 is 4660660266022.

It is an interprime number because it is at equal distance from previous prime (2206620660637) and next prime (2206620660691).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2550114 + ... + 3303985.

It is an arithmetic number, because the mean of its divisors is an integer number (75869136000).

Almost surely, 2^{2206620660664} is an apocalyptic number.

It is an amenable number.

2206620660664 is an abundant number, since it is smaller than the sum of its proper divisors (2649004043336).

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

2206620660664 is a wasteful number, since it uses less digits than its factorization.

2206620660664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5854292 (or 5854288 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 46.

The spelling of 2206620660664 in words is "two trillion, two hundred six billion, six hundred twenty million, six hundred sixty thousand, six hundred sixty-four".