1664010533 has 2 divisors, whose sum is σ = 1664010534. Its totient is φ = 1664010532.

The previous prime is 1664010503. The next prime is 1664010547. The reversal of 1664010533 is 3350104661.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 868657729 + 795352804 = 29473^2 + 28202^2 .

It is an emirp because it is prime and its reverse (3350104661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1664010533 - 2²⁰ = 1662961957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1664010496 and 1664010505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1664010503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 832005266 + 832005267.

It is an arithmetic number, because the mean of its divisors is an integer number (832005267).

Almost surely, 2^1664010533 is an apocalyptic number.

It is an amenable number.

1664010533 is a deficient number, since it is larger than the sum of its proper divisors (1).

1664010533 is an equidigital number, since it uses as much as digits as its factorization.

1664010533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 1664010533 is about 40792.2852142412. The cubic root of 1664010533 is about 1185.0009276759. Note that the first 3 decimals are identical.

The spelling of 1664010533 in words is "one billion, six hundred sixty-four million, ten thousand, five hundred thirty-three".