1620103357573 has 8 divisors (see below), whose sum is σ = 1705384437120. Its totient is φ = 1534823526240.

The previous prime is 1620103357571. The next prime is 1620103357583. The reversal of 1620103357573 is 3757533010261.

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 1620103357573 - 2¹ = 1620103357571 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 (1620103357571) 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, 3627561 + ... + 4049617.

It is an arithmetic number, because the mean of its divisors is an integer number (213173054640).

Almost surely, 2^{1620103357573} is an apocalyptic number.

It is an amenable number.

1620103357573 is a deficient number, since it is larger than the sum of its proper divisors (85281079547).

1620103357573 is a wasteful number, since it uses less digits than its factorization.

1620103357573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624107.

The product of its (nonzero) digits is 396900, while the sum is 43.

The spelling of 1620103357573 in words is "one trillion, six hundred twenty billion, one hundred three million, three hundred fifty-seven thousand, five hundred seventy-three".