1664100613 has 12 divisors (see below), whose sum is σ = 1941388992. Its totient is φ = 1422246840.

The previous prime is 1664100589. The next prime is 1664100631. The reversal of 1664100613 is 3160014661.

It is not a de Polignac number, because 1664100613 - 2⁹ = 1664100101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1664100643) 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 11 ways as a sum of consecutive naturals, for example, 31933 + ... + 65938.

It is an arithmetic number, because the mean of its divisors is an integer number (161782416).

Almost surely, 2^1664100613 is an apocalyptic number.

It is an amenable number.

1664100613 is a deficient number, since it is larger than the sum of its proper divisors (277288379).

1664100613 is an equidigital number, since it uses as much as digits as its factorization.

1664100613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98232 (or 98225 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1664100613 is about 40793.3893296451. The cubic root of 1664100613 is about 1185.0223103445.

The spelling of 1664100613 in words is "one billion, six hundred sixty-four million, one hundred thousand, six hundred thirteen".