420550118016 has 64 divisors (see below), whose sum is σ = 1276670009280. Its totient is φ = 120157175808.

The previous prime is 420550117993. The next prime is 420550118017. The reversal of 420550118016 is 610811055024.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (420550118017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78224641 + ... + 78230016.

It is an arithmetic number, because the mean of its divisors is an integer number (19947968895).

Almost surely, 2^420550118016 is an apocalyptic number.

It is an amenable number.

420550118016 is an abundant number, since it is smaller than the sum of its proper divisors (856119891264).

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

420550118016 is a wasteful number, since it uses less digits than its factorization.

420550118016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156454681 (or 156454669 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 33.

The spelling of 420550118016 in words is "four hundred twenty billion, five hundred fifty million, one hundred eighteen thousand, sixteen".