20453210140046 has 32 divisors (see below), whose sum is σ = 33017709418848. Its totient is φ = 9467061488640.

The previous prime is 20453210140039. The next prime is 20453210140073. The reversal of 20453210140046 is 64004101235402.

It is a junction number, because it is equal to n+sod(n) for n = 20453210139994 and 20453210140021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193499066 + ... + 193604738.

It is an arithmetic number, because the mean of its divisors is an integer number (1031803419339).

Almost surely, 2^{20453210140046} is an apocalyptic number.

20453210140046 is a deficient number, since it is larger than the sum of its proper divisors (12564499278802).

20453210140046 is a wasteful number, since it uses less digits than its factorization.

20453210140046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199076.

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 20453210140046 its reverse (64004101235402), we get a palindrome (84457311375448).

The spelling of 20453210140046 in words is "twenty trillion, four hundred fifty-three billion, two hundred ten million, one hundred forty thousand, forty-six".