420516343435 has 16 divisors (see below), whose sum is σ = 507780209952. Its totient is φ = 334311494400.

The previous prime is 420516343433. The next prime is 420516343439. The reversal of 420516343435 is 534343615024.

It is not a de Polignac number, because 420516343435 - 2¹ = 420516343433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420516343433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271615 + ... + 956455.

It is an arithmetic number, because the mean of its divisors is an integer number (31736263122).

Almost surely, 2^420516343435 is an apocalyptic number.

420516343435 is a deficient number, since it is larger than the sum of its proper divisors (87263866517).

420516343435 is a wasteful number, since it uses less digits than its factorization.

420516343435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685614.

The product of its (nonzero) digits is 518400, while the sum is 40.

Adding to 420516343435 its reverse (534343615024), we get a palindrome (954859958459).

The spelling of 420516343435 in words is "four hundred twenty billion, five hundred sixteen million, three hundred forty-three thousand, four hundred thirty-five".