2215134132660 has 144 divisors (see below), whose sum is σ = 6772214921472. Its totient is φ = 586047571200.

The previous prime is 2215134132647. The next prime is 2215134132697. The reversal of 2215134132660 is 662314315122.

2215134132660 is a `hidden beast` number, since 2 + 2 + 1 + 51 + 341 + 3 + 266 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 121828770 + ... + 121846950.

It is an arithmetic number, because the mean of its divisors is an integer number (47029270288).

Almost surely, 2^{2215134132660} is an apocalyptic number.

2215134132660 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 2215134132660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3386107460736).

2215134132660 is an abundant number, since it is smaller than the sum of its proper divisors (4557080788812).

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

2215134132660 is a wasteful number, since it uses less digits than its factorization.

2215134132660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23494 (or 23489 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Adding to 2215134132660 its reverse (662314315122), we get a palindrome (2877448447782).

The spelling of 2215134132660 in words is "two trillion, two hundred fifteen billion, one hundred thirty-four million, one hundred thirty-two thousand, six hundred sixty".