2209030861655 has 32 divisors (see below), whose sum is σ = 2753558565120. Its totient is φ = 1700391363840.

The previous prime is 2209030861601. The next prime is 2209030861703. The reversal of 2209030861655 is 5561680309022.

It is not a de Polignac number, because 2209030861655 - 2¹⁴ = 2209030845271 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2429564 + ... + 3212606.

It is an arithmetic number, because the mean of its divisors is an integer number (86048705160).

Almost surely, 2^{2209030861655} is an apocalyptic number.

2209030861655 is a deficient number, since it is larger than the sum of its proper divisors (544527703465).

2209030861655 is a wasteful number, since it uses less digits than its factorization.

2209030861655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783311.

The product of its (nonzero) digits is 777600, while the sum is 47.

The spelling of 2209030861655 in words is "two trillion, two hundred nine billion, thirty million, eight hundred sixty-one thousand, six hundred fifty-five".