620225616505 has 16 divisors (see below), whose sum is σ = 817772961600. Its totient is φ = 447828039360.

The previous prime is 620225616503. The next prime is 620225616587. The reversal of 620225616505 is 505616522026.

It is not a de Polignac number, because 620225616505 - 2¹ = 620225616503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (620225616503) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 40556490 + ... + 40571779.

It is an arithmetic number, because the mean of its divisors is an integer number (51110810100).

Almost surely, 2^620225616505 is an apocalyptic number.

It is an amenable number.

620225616505 is a deficient number, since it is larger than the sum of its proper divisors (197547345095).

620225616505 is a wasteful number, since it uses less digits than its factorization.

620225616505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81128424.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 620225616505 in words is "six hundred twenty billion, two hundred twenty-five million, six hundred sixteen thousand, five hundred five".