20343253466 has 8 divisors (see below), whose sum is σ = 30519725184. Its totient is φ = 10170011740.

The previous prime is 20343253429. The next prime is 20343253481. The reversal of 20343253466 is 66435234302.

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

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 3 ways as a sum of consecutive naturals, for example, 791690 + ... + 816981.

It is an arithmetic number, because the mean of its divisors is an integer number (3814965648).

Almost surely, 2^20343253466 is an apocalyptic number.

20343253466 is a deficient number, since it is larger than the sum of its proper divisors (10176471718).

20343253466 is a wasteful number, since it uses less digits than its factorization.

20343253466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614996.

The product of its (nonzero) digits is 311040, while the sum is 38.

Adding to 20343253466 its reverse (66435234302), we get a palindrome (86778487768).

The spelling of 20343253466 in words is "twenty billion, three hundred forty-three million, two hundred fifty-three thousand, four hundred sixty-six".