20546343245 has 8 divisors (see below), whose sum is σ = 24658016760. Its totient is φ = 16435471360.

The previous prime is 20546343211. The next prime is 20546343269. The reversal of 20546343245 is 54234364502.

20546343245 is nontrivially palindromic in base 7.

It can be written as a sum of positive squares in 4 ways, for example, as 783888004 + 19762455241 = 27998^2 + 140579^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20546343245 - 2²⁸ = 20277907789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20546343199 and 20546343208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142496 + ... + 247785.

It is an arithmetic number, because the mean of its divisors is an integer number (3082252095).

Almost surely, 2^20546343245 is an apocalyptic number.

It is an amenable number.

20546343245 is a deficient number, since it is larger than the sum of its proper divisors (4111673515).

20546343245 is a wasteful number, since it uses less digits than its factorization.

20546343245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400815.

The product of its (nonzero) digits is 345600, while the sum is 38.

The spelling of 20546343245 in words is "twenty billion, five hundred forty-six million, three hundred forty-three thousand, two hundred forty-five".