620902607568 has 160 divisors (see below), whose sum is σ = 1630875617280. Its totient is φ = 203533248000.

The previous prime is 620902607561. The next prime is 620902607569. The reversal of 620902607568 is 865706209026.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 620902607568.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620902607561) 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, 631640005 + ... + 631640987.

It is an arithmetic number, because the mean of its divisors is an integer number (10192972608).

Almost surely, 2^620902607568 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 620902607568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (815437808640).

620902607568 is an abundant number, since it is smaller than the sum of its proper divisors (1009973009712).

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

620902607568 is a wasteful number, since it uses less digits than its factorization.

620902607568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1857 (or 1851 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 620902607568 in words is "six hundred twenty billion, nine hundred two million, six hundred seven thousand, five hundred sixty-eight".