20353450413345 has 16 divisors (see below), whose sum is σ = 37217737898880. Its totient is φ = 9304434474624.

The previous prime is 20353450413337. The next prime is 20353450413409. The reversal of 20353450413345 is 54331405435302.

It is not a de Polignac number, because 20353450413345 - 2³ = 20353450413337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20353450413297 and 20353450413306.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96921192340 + ... + 96921192549.

It is an arithmetic number, because the mean of its divisors is an integer number (2326108618680).

Almost surely, 2^{20353450413345} is an apocalyptic number.

It is an amenable number.

20353450413345 is a deficient number, since it is larger than the sum of its proper divisors (16864287485535).

20353450413345 is a wasteful number, since it uses less digits than its factorization.

20353450413345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193842384904.

The product of its (nonzero) digits is 1296000, while the sum is 42.

Adding to 20353450413345 its reverse (54331405435302), we get a palindrome (74684855848647).

The spelling of 20353450413345 in words is "twenty trillion, three hundred fifty-three billion, four hundred fifty million, four hundred thirteen thousand, three hundred forty-five".