420220402020456 has 64 divisors (see below), whose sum is σ = 1055888605946880. Its totient is φ = 139362617192640.

The previous prime is 420220402020371. The next prime is 420220402020521. The reversal of 420220402020456 is 654020204022024.

It is a happy number.

It is a super-2 number, since 2×420220402020456² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17834590 + ... + 34036941.

It is an arithmetic number, because the mean of its divisors is an integer number (16498259467920).

Almost surely, 2^{420220402020456} is an apocalyptic number.

It is an amenable number.

420220402020456 is an abundant number, since it is smaller than the sum of its proper divisors (635668203926424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420220402020456 is a wasteful number, since it uses less digits than its factorization.

420220402020456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51873254 (or 51873250 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 33.

The spelling of 420220402020456 in words is "four hundred twenty trillion, two hundred twenty billion, four hundred two million, twenty thousand, four hundred fifty-six".