1664417013 has 8 divisors (see below), whose sum is σ = 2536254528. Its totient is φ = 951095424.

The previous prime is 1664416937. The next prime is 1664417021. The reversal of 1664417013 is 3107144661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1664417013 - 2⁸ = 1664416757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1664417413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39628956 + ... + 39628997.

It is an arithmetic number, because the mean of its divisors is an integer number (317031816).

Almost surely, 2^1664417013 is an apocalyptic number.

It is an amenable number.

1664417013 is a deficient number, since it is larger than the sum of its proper divisors (871837515).

1664417013 is an equidigital number, since it uses as much as digits as its factorization.

1664417013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79257963.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 1664417013 is about 40797.2672246561. The cubic root of 1664417013 is about 1185.0974094292.

The spelling of 1664417013 in words is "one billion, six hundred sixty-four million, four hundred seventeen thousand, thirteen".