9620820016623 has 24 divisors (see below), whose sum is σ = 13961440546560. Its totient is φ = 6384043446480.

The previous prime is 9620820016601. The next prime is 9620820016651. The reversal of 9620820016623 is 3266100280269.

9620820016623 is a `hidden beast` number, since 9 + 6 + 2 + 0 + 8 + 2 + 0 + 0 + 16 + 623 = 666.

9620820016623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9620820016623 - 2¹⁶ = 9620819951087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9620820016523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3534340 + ... + 5633222.

It is an arithmetic number, because the mean of its divisors is an integer number (581726689440).

Almost surely, 2^{9620820016623} is an apocalyptic number.

9620820016623 is a deficient number, since it is larger than the sum of its proper divisors (4340620529937).

9620820016623 is a wasteful number, since it uses less digits than its factorization.

9620820016623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101259 (or 2101256 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 9620820016623 in words is "nine trillion, six hundred twenty billion, eight hundred twenty million, sixteen thousand, six hundred twenty-three".