1662066238 has 8 divisors (see below), whose sum is σ = 2849256432. Its totient is φ = 712314096.

The previous prime is 1662066223. The next prime is 1662066239. The reversal of 1662066238 is 8326602661.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1662066238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662066239) 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, 59359495 + ... + 59359522.

It is an arithmetic number, because the mean of its divisors is an integer number (356157054).

Almost surely, 2^1662066238 is an apocalyptic number.

1662066238 is a deficient number, since it is larger than the sum of its proper divisors (1187190194).

1662066238 is a wasteful number, since it uses less digits than its factorization.

1662066238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118719026.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 1662066238 is about 40768.4465978286. The cubic root of 1662066238 is about 1184.5392139880.

Adding to 1662066238 its reverse (8326602661), we get a palindrome (9988668899).

The spelling of 1662066238 in words is "one billion, six hundred sixty-two million, sixty-six thousand, two hundred thirty-eight".