620422015563 has 32 divisors (see below), whose sum is σ = 1071887744000. Its totient is φ = 354526860744.

The previous prime is 620422015559. The next prime is 620422015579. The reversal of 620422015563 is 365510224026.

620422015563 is a `hidden beast` number, since 6 + 20 + 42 + 20 + 15 + 563 = 666.

It is not a de Polignac number, because 620422015563 - 2² = 620422015559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620422015513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33487231 + ... + 33505752.

It is an arithmetic number, because the mean of its divisors is an integer number (33496492000).

Almost surely, 2^620422015563 is an apocalyptic number.

620422015563 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

620422015563 is a deficient number, since it is larger than the sum of its proper divisors (451465728437).

620422015563 is an equidigital number, since it uses as much as digits as its factorization.

620422015563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66993013 (or 66992993 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 620422015563 its reverse (365510224026), we get a palindrome (985932239589).

The spelling of 620422015563 in words is "six hundred twenty billion, four hundred twenty-two million, fifteen thousand, five hundred sixty-three".