1664101248 has 32 divisors (see below), whose sum is σ = 4420269960. Its totient is φ = 554700288.

The previous prime is 1664101217. The next prime is 1664101249. The reversal of 1664101248 is 8421014661.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1664101249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2166415 + ... + 2167182.

Almost surely, 2^1664101248 is an apocalyptic number.

It is an amenable number.

1664101248 is an abundant number, since it is smaller than the sum of its proper divisors (2756168712).

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

1664101248 is an equidigital number, since it uses as much as digits as its factorization.

1664101248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4333614 (or 4333602 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 1664101248 is about 40793.3971127681. The cubic root of 1664101248 is about 1185.0224610744.

The spelling of 1664101248 in words is "one billion, six hundred sixty-four million, one hundred one thousand, two hundred forty-eight".