2216656535366 has 32 divisors (see below), whose sum is σ = 4233402411840. Its totient is φ = 846680478336.

The previous prime is 2216656535321. The next prime is 2216656535389. The reversal of 2216656535366 is 6635356566122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209984921 + ... + 209995476.

It is an arithmetic number, because the mean of its divisors is an integer number (132293825370).

Almost surely, 2^{2216656535366} is an apocalyptic number.

2216656535366 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2216656535366 is a deficient number, since it is larger than the sum of its proper divisors (2016745876474).

2216656535366 is a wasteful number, since it uses less digits than its factorization.

2216656535366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419980448.

The product of its digits is 34992000, while the sum is 56.

The spelling of 2216656535366 in words is "two trillion, two hundred sixteen billion, six hundred fifty-six million, five hundred thirty-five thousand, three hundred sixty-six".