10420420455 has 36 divisors (see below), whose sum is σ = 18250930152. Its totient is φ = 5500039680.

The previous prime is 10420420433. The next prime is 10420420481. The reversal of 10420420455 is 55402402401.

10420420455 is a `hidden beast` number, since 1 + 0 + 4 + 204 + 2 + 0 + 455 = 666.

It is not a de Polignac number, because 10420420455 - 2⁶ = 10420420391 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 411100 + ... + 435710.

It is an arithmetic number, because the mean of its divisors is an integer number (506970282).

Almost surely, 2^10420420455 is an apocalyptic number.

10420420455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10420420455 is a deficient number, since it is larger than the sum of its proper divisors (7830509697).

10420420455 is an equidigital number, since it uses as much as digits as its factorization.

10420420455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24816 (or 24716 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

Adding to 10420420455 its reverse (55402402401), we get a palindrome (65822822856).

The spelling of 10420420455 in words is "ten billion, four hundred twenty million, four hundred twenty thousand, four hundred fifty-five".