2002453105520 has 80 divisors (see below), whose sum is σ = 5324453022720. Its totient is φ = 686084504832.

The previous prime is 2002453105493. The next prime is 2002453105607. The reversal of 2002453105520 is 255013542002.

It is a tau number, because it is divible by the number of its divisors (80).

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 15 ways as a sum of consecutive naturals, for example, 408392 + ... + 2042471.

It is an arithmetic number, because the mean of its divisors is an integer number (66555662784).

Almost surely, 2^{2002453105520} is an apocalyptic number.

2002453105520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002453105520 is an abundant number, since it is smaller than the sum of its proper divisors (3321999917200).

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

2002453105520 is a wasteful number, since it uses less digits than its factorization.

2002453105520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2452342 (or 2452336 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

Adding to 2002453105520 its reverse (255013542002), we get a palindrome (2257466647522).

The spelling of 2002453105520 in words is "two trillion, two billion, four hundred fifty-three million, one hundred five thousand, five hundred twenty".