1662260205 has 16 divisors (see below), whose sum is σ = 2660543424. Its totient is φ = 886229760.

The previous prime is 1662260183. The next prime is 1662260219. The reversal of 1662260205 is 5020622661.

It is not a de Polignac number, because 1662260205 - 2⁶ = 1662260141 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29062 + ... + 64568.

It is an arithmetic number, because the mean of its divisors is an integer number (166283964).

Almost surely, 2^1662260205 is an apocalyptic number.

1662260205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1662260205 is a deficient number, since it is larger than the sum of its proper divisors (998283219).

1662260205 is a wasteful number, since it uses less digits than its factorization.

1662260205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38636.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 1662260205 is about 40770.8254147497. The cubic root of 1662260205 is about 1184.5852916904.

Adding to 1662260205 its reverse (5020622661), we get a palindrome (6682882866).

The spelling of 1662260205 in words is "one billion, six hundred sixty-two million, two hundred sixty thousand, two hundred five".