1664300231 has 8 divisors (see below), whose sum is σ = 1911158400. Its totient is φ = 1433368440.

The previous prime is 1664300207. The next prime is 1664300233. The reversal of 1664300231 is 1320034661.

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

It is a cyclic number.

It is not a de Polignac number, because 1664300231 - 2¹⁰ = 1664299207 is a prime.

It is a super-2 number, since 2×1664300231² = 5539790517813306722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1664300231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1664300233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3981371 + ... + 3981788.

It is an arithmetic number, because the mean of its divisors is an integer number (238894800).

Almost surely, 2^1664300231 is an apocalyptic number.

1664300231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1664300231 is a deficient number, since it is larger than the sum of its proper divisors (246858169).

1664300231 is a wasteful number, since it uses less digits than its factorization.

1664300231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7963189.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 1664300231 is about 40795.8359517243. The cubic root of 1664300231 is about 1185.0696917596.

Adding to 1664300231 its reverse (1320034661), we get a palindrome (2984334892).

The spelling of 1664300231 in words is "one billion, six hundred sixty-four million, three hundred thousand, two hundred thirty-one".