2215663223660 has 24 divisors (see below), whose sum is σ = 4660634713056. Its totient is φ = 884790633600.

The previous prime is 2215663223647. The next prime is 2215663223723. The reversal of 2215663223660 is 663223665122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92153672 + ... + 92177711.

It is an arithmetic number, because the mean of its divisors is an integer number (194193113044).

Almost surely, 2^{2215663223660} is an apocalyptic number.

2215663223660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2215663223660 is an abundant number, since it is smaller than the sum of its proper divisors (2444971489396).

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

2215663223660 is a wasteful number, since it uses less digits than its factorization.

2215663223660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184331993 (or 184331991 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 44.

Adding to 2215663223660 its reverse (663223665122), we get a palindrome (2878886888782).

The spelling of 2215663223660 in words is "two trillion, two hundred fifteen billion, six hundred sixty-three million, two hundred twenty-three thousand, six hundred sixty".