620381958606 has 80 divisors (see below), whose sum is σ = 1418029745616. Its totient is φ = 202672761984.

The previous prime is 620381958583. The next prime is 620381958611. The reversal of 620381958606 is 606859183026.

It is a happy number.

620381958606 is a `hidden beast` number, since 6 + 20 + 3 + 8 + 1 + 9 + 5 + 8 + 606 = 666.

It is a super-3 number, since 3×620381958606³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1993170 + ... + 2283306.

Almost surely, 2^620381958606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620381958606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (709014872808).

620381958606 is an abundant number, since it is smaller than the sum of its proper divisors (797647787010).

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

620381958606 is a wasteful number, since it uses less digits than its factorization.

620381958606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290415 (or 290406 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 620381958606 in words is "six hundred twenty billion, three hundred eighty-one million, nine hundred fifty-eight thousand, six hundred six".