1620743202304 has 40 divisors (see below), whose sum is σ = 3342782887488. Its totient is φ = 784230574080.

The previous prime is 1620743202277. The next prime is 1620743202343. The reversal of 1620743202304 is 4032023470261.

It is a self number, because there is not a number n which added to its sum of digits gives 1620743202304.

It is a congruent number.

It is an unprimeable number.

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, 51040807 + ... + 51072550.

Almost surely, 2^{1620743202304} is an apocalyptic number.

It is an amenable number.

1620743202304 is an abundant number, since it is smaller than the sum of its proper divisors (1722039685184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1620743202304 is an equidigital number, since it uses as much as digits as its factorization.

1620743202304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102113406 (or 102113390 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 34.

Adding to 1620743202304 its reverse (4032023470261), we get a palindrome (5652766672565).

The spelling of 1620743202304 in words is "one trillion, six hundred twenty billion, seven hundred forty-three million, two hundred two thousand, three hundred four".