626216720346 has 96 divisors (see below), whose sum is σ = 1604947289088. Its totient is φ = 172682876160.

The previous prime is 626216720323. The next prime is 626216720347. The reversal of 626216720346 is 643027612626.

626216720346 is a `hidden beast` number, since 6 + 26 + 216 + 72 + 0 + 346 = 666.

It is not an unprimeable number, because it can be changed into a prime (626216720347) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 1242030 + ... + 1671846.

It is an arithmetic number, because the mean of its divisors is an integer number (16718200928).

Almost surely, 2^626216720346 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 626216720346, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (802473644544).

626216720346 is an abundant number, since it is smaller than the sum of its proper divisors (978730568742).

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

626216720346 is a wasteful number, since it uses less digits than its factorization.

626216720346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430236 (or 430233 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

The spelling of 626216720346 in words is "six hundred twenty-six billion, two hundred sixteen million, seven hundred twenty thousand, three hundred forty-six".