2664062221 has 8 divisors (see below), whose sum is σ = 2757081600. Its totient is φ = 2571485520.

The previous prime is 2664062209. The next prime is 2664062237. The reversal of 2664062221 is 1222604662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2664062221 - 2¹¹ = 2664060173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664062321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98401 + ... + 122518.

It is an arithmetic number, because the mean of its divisors is an integer number (344635200).

Almost surely, 2^2664062221 is an apocalyptic number.

It is an amenable number.

2664062221 is a deficient number, since it is larger than the sum of its proper divisors (93019379).

2664062221 is a wasteful number, since it uses less digits than its factorization.

2664062221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221339.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 2664062221 is about 51614.5543524305. The cubic root of 2664062221 is about 1386.2709462060.

Adding to 2664062221 its reverse (1222604662), we get a palindrome (3886666883).

The spelling of 2664062221 in words is "two billion, six hundred sixty-four million, sixty-two thousand, two hundred twenty-one".