20534322455 has 16 divisors (see below), whose sum is σ = 24700442400. Its totient is φ = 16388008320.

The previous prime is 20534322437. The next prime is 20534322461. The reversal of 20534322455 is 55422343502.

It is not a de Polignac number, because 20534322455 - 2¹⁴ = 20534306071 is a prime.

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, 4180541 + ... + 4185449.

It is an arithmetic number, because the mean of its divisors is an integer number (1543777650).

Almost surely, 2^20534322455 is an apocalyptic number.

20534322455 is a deficient number, since it is larger than the sum of its proper divisors (4166119945).

20534322455 is a wasteful number, since it uses less digits than its factorization.

20534322455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6754.

The product of its (nonzero) digits is 144000, while the sum is 35.

Adding to 20534322455 its reverse (55422343502), we get a palindrome (75956665957).

The spelling of 20534322455 in words is "twenty billion, five hundred thirty-four million, three hundred twenty-two thousand, four hundred fifty-five".