420653333505 has 8 divisors (see below), whose sum is σ = 673045333632. Its totient is φ = 224348444528.

The previous prime is 420653333483. The next prime is 420653333549. The reversal of 420653333505 is 505333356024.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 420653333505 - 2¹⁰ = 420653332481 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14021777769 + ... + 14021777798.

It is an arithmetic number, because the mean of its divisors is an integer number (84130666704).

Almost surely, 2^420653333505 is an apocalyptic number.

It is an amenable number.

420653333505 is a deficient number, since it is larger than the sum of its proper divisors (252392000127).

420653333505 is a wasteful number, since it uses less digits than its factorization.

420653333505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28043555575.

The product of its (nonzero) digits is 486000, while the sum is 39.

Adding to 420653333505 its reverse (505333356024), we get a palindrome (925986689529).

The spelling of 420653333505 in words is "four hundred twenty billion, six hundred fifty-three million, three hundred thirty-three thousand, five hundred five".