20354110453445 has 48 divisors (see below), whose sum is σ = 25693703418240. Its totient is φ = 15475117878528.

The previous prime is 20354110453429. The next prime is 20354110453451. The reversal of 20354110453445 is 54435401145302.

It is not a de Polignac number, because 20354110453445 - 2⁴ = 20354110453429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 371581079 + ... + 371635851.

It is an arithmetic number, because the mean of its divisors is an integer number (535285487880).

Almost surely, 2^{20354110453445} is an apocalyptic number.

It is an amenable number.

20354110453445 is a deficient number, since it is larger than the sum of its proper divisors (5339592964795).

20354110453445 is a wasteful number, since it uses less digits than its factorization.

20354110453445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56222 (or 56193 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 41.

Adding to 20354110453445 its reverse (54435401145302), we get a palindrome (74789511598747).

The spelling of 20354110453445 in words is "twenty trillion, three hundred fifty-four billion, one hundred ten million, four hundred fifty-three thousand, four hundred forty-five".