20662341142246 has 8 divisors (see below), whose sum is σ = 30993566698584. Its totient is φ = 10331152242720.

The previous prime is 20662341142243. The next prime is 20662341142271. The reversal of 20662341142246 is 64224114326602.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20662341142243) 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, 7708800 + ... + 10037443.

It is an arithmetic number, because the mean of its divisors is an integer number (3874195837323).

Almost surely, 2^{20662341142246} is an apocalyptic number.

20662341142246 is a deficient number, since it is larger than the sum of its proper divisors (10331225556338).

20662341142246 is a wasteful number, since it uses less digits than its factorization.

20662341142246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18328406.

The product of its (nonzero) digits is 663552, while the sum is 43.

Adding to 20662341142246 its reverse (64224114326602), we get a palindrome (84886455468848).

The spelling of 20662341142246 in words is "twenty trillion, six hundred sixty-two billion, three hundred forty-one million, one hundred forty-two thousand, two hundred forty-six".