2216660662620 has 192 divisors, whose sum is σ = 7059872131200. Its totient is φ = 584466803712.

The previous prime is 2216660662613. The next prime is 2216660662693. The reversal of 2216660662620 is 262660666122.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3608152 + ... + 4177568.

It is an arithmetic number, because the mean of its divisors is an integer number (36770167350).

Almost surely, 2^{2216660662620} is an apocalyptic number.

2216660662620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2216660662620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3529936065600).

2216660662620 is an abundant number, since it is smaller than the sum of its proper divisors (4843211468580).

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

2216660662620 is an equidigital number, since it uses as much as digits as its factorization.

2216660662620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569536 (or 569516 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The spelling of 2216660662620 in words is "two trillion, two hundred sixteen billion, six hundred sixty million, six hundred sixty-two thousand, six hundred twenty".