625681762216 has 128 divisors (see below), whose sum is σ = 1417137120000. Its totient is φ = 252990259200.

The previous prime is 625681762213. The next prime is 625681762241. The reversal of 625681762216 is 612267186526.

It is not an unprimeable number, because it can be changed into a prime (625681762213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 363556236 + ... + 363557956.

It is an arithmetic number, because the mean of its divisors is an integer number (11071383750).

Almost surely, 2^625681762216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 625681762216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (708568560000).

625681762216 is an abundant number, since it is smaller than the sum of its proper divisors (791455357784).

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

625681762216 is a wasteful number, since it uses less digits than its factorization.

625681762216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2963 (or 2959 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 52.

The spelling of 625681762216 in words is "six hundred twenty-five billion, six hundred eighty-one million, seven hundred sixty-two thousand, two hundred sixteen".