620166504426 has 96 divisors (see below), whose sum is σ = 1507402483200. Its totient is φ = 169280030304.

The previous prime is 620166504413. The next prime is 620166504431. The reversal of 620166504426 is 624405661026.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5536725 + ... + 5647623.

It is an arithmetic number, because the mean of its divisors is an integer number (15702109200).

Almost surely, 2^620166504426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620166504426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (753701241600).

620166504426 is an abundant number, since it is smaller than the sum of its proper divisors (887235978774).

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

620166504426 is a wasteful number, since it uses less digits than its factorization.

620166504426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111768 (or 111761 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 620166504426 in words is "six hundred twenty billion, one hundred sixty-six million, five hundred four thousand, four hundred twenty-six".