1664226982 has 36 divisors (see below), whose sum is σ = 2813155884. Its totient is φ = 737836000.

The previous prime is 1664226953. The next prime is 1664227039. The reversal of 1664226982 is 2896224661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 404757 + ... + 408847.

It is an arithmetic number, because the mean of its divisors is an integer number (78143219).

Almost surely, 2^1664226982 is an apocalyptic number.

1664226982 is a deficient number, since it is larger than the sum of its proper divisors (1148928902).

1664226982 is a wasteful number, since it uses less digits than its factorization.

1664226982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4197 (or 4145 counting only the distinct ones).

The product of its digits is 497664, while the sum is 46.

The square root of 1664226982 is about 40794.9381909079. The cubic root of 1664226982 is about 1185.0523057852.

The spelling of 1664226982 in words is "one billion, six hundred sixty-four million, two hundred twenty-six thousand, nine hundred eighty-two".