20662460246 has 16 divisors (see below), whose sum is σ = 32944554576. Its totient is φ = 9685671936.

The previous prime is 20662460237. The next prime is 20662460267. The reversal of 20662460246 is 64206426602.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1173596 + ... + 1191071.

It is an arithmetic number, because the mean of its divisors is an integer number (2059034661).

Almost surely, 2^20662460246 is an apocalyptic number.

20662460246 is a deficient number, since it is larger than the sum of its proper divisors (12282094330).

20662460246 is a wasteful number, since it uses less digits than its factorization.

20662460246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364943.

The product of its (nonzero) digits is 165888, while the sum is 38.

Adding to 20662460246 its reverse (64206426602), we get a palindrome (84868886848).

The spelling of 20662460246 in words is "twenty billion, six hundred sixty-two million, four hundred sixty thousand, two hundred forty-six".