1664010016 has 12 divisors (see below), whose sum is σ = 3276019782. Its totient is φ = 832004992.

The previous prime is 1664009999. The next prime is 1664010041. The reversal of 1664010016 is 6100104661.

It can be written as a sum of positive squares in only one way, i.e., 1637011600 + 26998416 = 40460^2 + 5196^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26000125 + ... + 26000188.

Almost surely, 2^1664010016 is an apocalyptic number.

1664010016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1664010016 is a deficient number, since it is larger than the sum of its proper divisors (1612009766).

1664010016 is an equidigital number, since it uses as much as digits as its factorization.

1664010016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52000323 (or 52000315 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1664010016 is about 40792.2788772581. The cubic root of 1664010016 is about 1185.0008049512. Note that the first 3 decimals are identical.

Adding to 1664010016 its reverse (6100104661), we get a palindrome (7764114677).

The spelling of 1664010016 in words is "one billion, six hundred sixty-four million, ten thousand, sixteen".