6620062056021 has 48 divisors (see below), whose sum is σ = 9605532119040. Its totient is φ = 4393491973920.

The previous prime is 6620062056017. The next prime is 6620062056031. The reversal of 6620062056021 is 1206502600266.

6620062056021 is a `hidden beast` number, since 6 + 6 + 2 + 0 + 0 + 620 + 5 + 6 + 0 + 21 = 666.

It is not a de Polignac number, because 6620062056021 - 2² = 6620062056017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6620062056031) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5692228186 + ... + 5692229348.

It is an arithmetic number, because the mean of its divisors is an integer number (200115252480).

Almost surely, 2^{6620062056021} is an apocalyptic number.

It is an amenable number.

6620062056021 is a deficient number, since it is larger than the sum of its proper divisors (2985470063019).

6620062056021 is a wasteful number, since it uses less digits than its factorization.

6620062056021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3846 (or 3843 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Adding to 6620062056021 its reverse (1206502600266), we get a palindrome (7826564656287).

The spelling of 6620062056021 in words is "six trillion, six hundred twenty billion, sixty-two million, fifty-six thousand, twenty-one".