20531414145 has 32 divisors (see below), whose sum is σ = 36805219200. Its totient is φ = 9685578240.

The previous prime is 20531414107. The next prime is 20531414179. The reversal of 20531414145 is 54141413502.

It is not a de Polignac number, because 20531414145 - 2¹⁰ = 20531413121 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1675420 + ... + 1687629.

It is an arithmetic number, because the mean of its divisors is an integer number (1150163100).

Almost surely, 2^20531414145 is an apocalyptic number.

It is an amenable number.

20531414145 is a deficient number, since it is larger than the sum of its proper divisors (16273805055).

20531414145 is a wasteful number, since it uses less digits than its factorization.

20531414145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3363105.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 20531414145 its reverse (54141413502), we get a palindrome (74672827647).

The spelling of 20531414145 in words is "twenty billion, five hundred thirty-one million, four hundred fourteen thousand, one hundred forty-five".