20468616323445 has 48 divisors (see below), whose sum is σ = 35591845910400. Its totient is φ = 10881877633920.

The previous prime is 20468616323371. The next prime is 20468616323461. The reversal of 20468616323445 is 54432361686402.

20468616323445 is a `hidden beast` number, since 2 + 0 + 4 + 68 + 61 + 63 + 23 + 445 = 666.

It is not a de Polignac number, because 20468616323445 - 2¹³ = 20468616315253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20468616323391 and 20468616323400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40768035 + ... + 41267055.

It is an arithmetic number, because the mean of its divisors is an integer number (741496789800).

Almost surely, 2^{20468616323445} is an apocalyptic number.

It is an amenable number.

20468616323445 is a deficient number, since it is larger than the sum of its proper divisors (15123229586955).

20468616323445 is a wasteful number, since it uses less digits than its factorization.

20468616323445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501930 (or 501927 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 54.

The spelling of 20468616323445 in words is "twenty trillion, four hundred sixty-eight billion, six hundred sixteen million, three hundred twenty-three thousand, four hundred forty-five".