620165120 has 96 divisors (see below), whose sum is σ = 1510760160. Its totient is φ = 244285440.

The previous prime is 620165069. The next prime is 620165129. The reversal of 620165120 is 21561026.

It is a super-2 number, since 2×620165120² = 769209552129228800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620165129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 726614 + ... + 727466.

It is an arithmetic number, because the mean of its divisors is an integer number (15737085).

Almost surely, 2^620165120 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 620165120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (755380080).

620165120 is an abundant number, since it is smaller than the sum of its proper divisors (890595040).

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

620165120 is an equidigital number, since it uses as much as digits as its factorization.

620165120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951 (or 931 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 620165120 is about 24903.1146646358. The cubic root of 620165120 is about 852.7775895325. Note that the first 3 decimals are identical.

The spelling of 620165120 in words is "six hundred twenty million, one hundred sixty-five thousand, one hundred twenty".