620072602221 has 4 divisors (see below), whose sum is σ = 826763469632. Its totient is φ = 413381734812.

The previous prime is 620072602189. The next prime is 620072602241. The reversal of 620072602221 is 122206270026.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 620072602221 - 2⁵ = 620072602189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620072602241) 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 3 ways as a sum of consecutive naturals, for example, 103345433701 + ... + 103345433706.

It is an arithmetic number, because the mean of its divisors is an integer number (206690867408).

Almost surely, 2^620072602221 is an apocalyptic number.

It is an amenable number.

620072602221 is a deficient number, since it is larger than the sum of its proper divisors (206690867411).

620072602221 is a wasteful number, since it uses less digits than its factorization.

620072602221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206690867410.

The product of its (nonzero) digits is 8064, while the sum is 30.

Adding to 620072602221 its reverse (122206270026), we get a palindrome (742278872247).

The spelling of 620072602221 in words is "six hundred twenty billion, seventy-two million, six hundred two thousand, two hundred twenty-one".