20432455245 has 12 divisors (see below), whose sum is σ = 35416255836. Its totient is φ = 10897309440.

The previous prime is 20432455217. The next prime is 20432455279. The reversal of 20432455245 is 54255423402.

20432455245 is a `hidden beast` number, since 2 + 0 + 43 + 24 + 552 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9930919716 + 10501535529 = 99654^2 + 102477^2 .

It is not a de Polignac number, because 20432455245 - 2⁶ = 20432455181 is a prime.

It is a super-3 number, since 3×20432455245³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 227027236 + ... + 227027325.

It is an arithmetic number, because the mean of its divisors is an integer number (2951354653).

Almost surely, 2^20432455245 is an apocalyptic number.

It is an amenable number.

20432455245 is a deficient number, since it is larger than the sum of its proper divisors (14983800591).

20432455245 is a wasteful number, since it uses less digits than its factorization.

20432455245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454054572 (or 454054569 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 36.

Adding to 20432455245 its reverse (54255423402), we get a palindrome (74687878647).

The spelling of 20432455245 in words is "twenty billion, four hundred thirty-two million, four hundred fifty-five thousand, two hundred forty-five".