2215016116660 has 24 divisors (see below), whose sum is σ = 4652018128296. Its totient is φ = 885914202240.

The previous prime is 2215016116657. The next prime is 2215016116667. The reversal of 2215016116660 is 666116105122.

It can be written as a sum of positive squares in 4 ways, for example, as 1104323553424 + 1110692563236 = 1050868^2 + 1053894^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215016116667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5568211 + ... + 5952730.

It is an arithmetic number, because the mean of its divisors is an integer number (193834088679).

Almost surely, 2^{2215016116660} is an apocalyptic number.

2215016116660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2215016116660 is an abundant number, since it is smaller than the sum of its proper divisors (2437002011636).

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

2215016116660 is a wasteful number, since it uses less digits than its factorization.

2215016116660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11530563 (or 11530561 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 2215016116660 in words is "two trillion, two hundred fifteen billion, sixteen million, one hundred sixteen thousand, six hundred sixty".