620446221611 has 8 divisors (see below), whose sum is σ = 625248486720. Its totient is φ = 615658802248.

The previous prime is 620446221583. The next prime is 620446221623. The reversal of 620446221611 is 116122644026.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 620446221611 - 2³⁸ = 345568314667 is a prime.

It is a super-2 number, since 2×620446221611² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620446221631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3627521 + ... + 3794706.

It is an arithmetic number, because the mean of its divisors is an integer number (78156060840).

Almost surely, 2^620446221611 is an apocalyptic number.

620446221611 is a deficient number, since it is larger than the sum of its proper divisors (4802265109).

620446221611 is a wasteful number, since it uses less digits than its factorization.

620446221611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7422873.

The product of its (nonzero) digits is 27648, while the sum is 35.

Adding to 620446221611 its reverse (116122644026), we get a palindrome (736568865637).

The spelling of 620446221611 in words is "six hundred twenty billion, four hundred forty-six million, two hundred twenty-one thousand, six hundred eleven".