20320450010534 has 16 divisors (see below), whose sum is σ = 30765909224448. Its totient is φ = 10065149208072.

The previous prime is 20320450010491. The next prime is 20320450010543. The reversal of 20320450010534 is 43501005402302.

It is a happy number.

It is a super-2 number, since 2×20320450010534² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20320450010497 and 20320450010506.

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, 18918647 + ... + 19963869.

It is an arithmetic number, because the mean of its divisors is an integer number (1922869326528).

Almost surely, 2^{20320450010534} is an apocalyptic number.

20320450010534 is a deficient number, since it is larger than the sum of its proper divisors (10445459213914).

20320450010534 is a wasteful number, since it uses less digits than its factorization.

20320450010534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136179.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 20320450010534 its reverse (43501005402302), we get a palindrome (63821455412836).

The spelling of 20320450010534 in words is "twenty trillion, three hundred twenty billion, four hundred fifty million, ten thousand, five hundred thirty-four".