20514534254432 has 24 divisors (see below), whose sum is σ = 40941249445656. Its totient is φ = 10116756617472.

The previous prime is 20514534254381. The next prime is 20514534254437. The reversal of 20514534254432 is 23445243541502.

It is a super-2 number, since 2×20514534254432² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20514534254437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4390951058 + ... + 4390955729.

It is an arithmetic number, because the mean of its divisors is an integer number (1705885393569).

Almost surely, 2^{20514534254432} is an apocalyptic number.

It is an amenable number.

20514534254432 is a deficient number, since it is larger than the sum of its proper divisors (20426715191224).

20514534254432 is an equidigital number, since it uses as much as digits as its factorization.

20514534254432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8781906870 (or 8781906862 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 44.

Adding to 20514534254432 its reverse (23445243541502), we get a palindrome (43959777795934).

The spelling of 20514534254432 in words is "twenty trillion, five hundred fourteen billion, five hundred thirty-four million, two hundred fifty-four thousand, four hundred thirty-two".