1662343255 has 4 divisors (see below), whose sum is σ = 1994811912. Its totient is φ = 1329874600.

The previous prime is 1662343253. The next prime is 1662343279. The reversal of 1662343255 is 5523432661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5523432661 = 953 ⋅5795837.

It is not a de Polignac number, because 1662343255 - 2¹ = 1662343253 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 (1662343253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166234321 + ... + 166234330.

It is an arithmetic number, because the mean of its divisors is an integer number (498702978).

Almost surely, 2^1662343255 is an apocalyptic number.

1662343255 is a deficient number, since it is larger than the sum of its proper divisors (332468657).

1662343255 is an equidigital number, since it uses as much as digits as its factorization.

1662343255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332468656.

The product of its digits is 129600, while the sum is 37.

The square root of 1662343255 is about 40771.8438999268. The cubic root of 1662343255 is about 1184.6050194823.

The spelling of 1662343255 in words is "one billion, six hundred sixty-two million, three hundred forty-three thousand, two hundred fifty-five".