2215164270 has 64 divisors (see below), whose sum is σ = 6051884544. Its totient is φ = 513659520.

The previous prime is 2215164253. The next prime is 2215164271. The reversal of 2215164270 is 724615122.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215164271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138337 + ... + 153516.

It is an arithmetic number, because the mean of its divisors is an integer number (94560696).

Almost surely, 2^2215164270 is an apocalyptic number.

2215164270 is an abundant number, since it is smaller than the sum of its proper divisors (3836720274).

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

2215164270 is a wasteful number, since it uses less digits than its factorization.

2215164270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291897.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 2215164270 is about 47065.5316553420. The cubic root of 2215164270 is about 1303.5728677306.

Adding to 2215164270 its reverse (724615122), we get a palindrome (2939779392).

The spelling of 2215164270 in words is "two billion, two hundred fifteen million, one hundred sixty-four thousand, two hundred seventy".