1664222196 has 48 divisors (see below), whose sum is σ = 4779307904. Its totient is φ = 438915456.

The previous prime is 1664222177. The next prime is 1664222233. The reversal of 1664222196 is 6912224661.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 760915 + ... + 763098.

Almost surely, 2^1664222196 is an apocalyptic number.

It is an amenable number.

1664222196 is an abundant number, since it is smaller than the sum of its proper divisors (3115085708).

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

1664222196 is a wasteful number, since it uses less digits than its factorization.

1664222196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1524040 (or 1524038 counting only the distinct ones).

The product of its digits is 62208, while the sum is 39.

The square root of 1664222196 is about 40794.8795316275. The cubic root of 1664222196 is about 1185.0511697892.

The spelling of 1664222196 in words is "one billion, six hundred sixty-four million, two hundred twenty-two thousand, one hundred ninety-six".