620063061264 has 120 divisors (see below), whose sum is σ = 1751461383672. Its totient is φ = 204766248960.

The previous prime is 620063061227. The next prime is 620063061269. The reversal of 620063061264 is 462160360026.

620063061264 is a `hidden beast` number, since 6 + 2 + 0 + 0 + 6 + 30 + 612 + 6 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 201852518400 + 418210542864 = 449280^2 + 646692^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (620063061269) 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 23 ways as a sum of consecutive naturals, for example, 42576544 + ... + 42591104.

Almost surely, 2^620063061264 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 620063061264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (875730691836).

620063061264 is an abundant number, since it is smaller than the sum of its proper divisors (1131398322408).

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

620063061264 is a wasteful number, since it uses less digits than its factorization.

620063061264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17305 (or 17296 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The spelling of 620063061264 in words is "six hundred twenty billion, sixty-three million, sixty-one thousand, two hundred sixty-four".