1620492053003 has 4 divisors (see below), whose sum is σ = 1627272354720. Its totient is φ = 1613711751288.

The previous prime is 1620492052969. The next prime is 1620492053017. The reversal of 1620492053003 is 3003502940261.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1620492053003 - 2⁶ = 1620492052939 is a prime.

It is a super-2 number, since 2×1620492053003² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1620492053903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3390150500 + ... + 3390150977.

It is an arithmetic number, because the mean of its divisors is an integer number (406818088680).

Almost surely, 2^{1620492053003} is an apocalyptic number.

1620492053003 is a deficient number, since it is larger than the sum of its proper divisors (6780301717).

1620492053003 is an equidigital number, since it uses as much as digits as its factorization.

1620492053003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6780301716.

The product of its (nonzero) digits is 38880, while the sum is 35.

Adding to 1620492053003 its reverse (3003502940261), we get a palindrome (4623994993264).

The spelling of 1620492053003 in words is "one trillion, six hundred twenty billion, four hundred ninety-two million, fifty-three thousand, three".