1662420234323 has 8 divisors (see below), whose sum is σ = 1668034630080. Its totient is φ = 1656814619880.

The previous prime is 1662420234281. The next prime is 1662420234331. The reversal of 1662420234323 is 3234320242661.

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 1662420234323 - 2⁶ = 1662420234259 is a prime.

It is a super-3 number, since 3×1662420234323³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1662420234373) 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, 1815953 + ... + 2573426.

It is an arithmetic number, because the mean of its divisors is an integer number (208504328760).

Almost surely, 2^{1662420234323} is an apocalyptic number.

1662420234323 is a deficient number, since it is larger than the sum of its proper divisors (5614395757).

1662420234323 is an equidigital number, since it uses as much as digits as its factorization.

1662420234323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4390657.

The product of its (nonzero) digits is 248832, while the sum is 38.

Adding to 1662420234323 its reverse (3234320242661), we get a palindrome (4896740476984).

The spelling of 1662420234323 in words is "one trillion, six hundred sixty-two billion, four hundred twenty million, two hundred thirty-four thousand, three hundred twenty-three".