1664410222 has 16 divisors (see below), whose sum is σ = 2651279760. Its totient is φ = 781425792.

The previous prime is 1664410219. The next prime is 1664410259. The reversal of 1664410222 is 2220144661.

It is a super-2 number, since 2×1664410222² = 5540522774196178568, which contains 22 as substring.

It is a congruent number.

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, 189513 + ... + 198100.

It is an arithmetic number, because the mean of its divisors is an integer number (165704985).

Almost surely, 2^1664410222 is an apocalyptic number.

1664410222 is a deficient number, since it is larger than the sum of its proper divisors (986869538).

1664410222 is a wasteful number, since it uses less digits than its factorization.

1664410222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387747.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 1664410222 is about 40797.1839959574. The cubic root of 1664410222 is about 1185.0957976521.

Adding to 1664410222 its reverse (2220144661), we get a palindrome (3884554883).

The spelling of 1664410222 in words is "one billion, six hundred sixty-four million, four hundred ten thousand, two hundred twenty-two".