20406323451232 has 48 divisors (see below), whose sum is σ = 40339390379904. Its totient is φ = 10161483904000.

The previous prime is 20406323451209. The next prime is 20406323451247. The reversal of 20406323451232 is 23215432360402.

It is a junction number, because it is equal to n+sod(n) for n = 20406323451191 and 20406323451200.

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, 6358257 + ... + 9013327.

It is an arithmetic number, because the mean of its divisors is an integer number (840403966248).

Almost surely, 2^{20406323451232} is an apocalyptic number.

It is an amenable number.

20406323451232 is a deficient number, since it is larger than the sum of its proper divisors (19933066928672).

20406323451232 is a wasteful number, since it uses less digits than its factorization.

20406323451232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2656063 (or 2656055 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 37.

The spelling of 20406323451232 in words is "twenty trillion, four hundred six billion, three hundred twenty-three million, four hundred fifty-one thousand, two hundred thirty-two".