20576436392144 has 20 divisors (see below), whose sum is σ = 39952213501824. Its totient is φ = 10266187746528.

The previous prime is 20576436392143. The next prime is 20576436392147. The reversal of 20576436392144 is 44129363467502.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20576436392144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20576436392143) 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, 1376895392 + ... + 1376910335.

Almost surely, 2^{20576436392144} is an apocalyptic number.

It is an amenable number.

20576436392144 is a deficient number, since it is larger than the sum of its proper divisors (19375777109680).

20576436392144 is a wasteful number, since it uses less digits than its factorization.

20576436392144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2753806202 (or 2753806196 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 56.

The spelling of 20576436392144 in words is "twenty trillion, five hundred seventy-six billion, four hundred thirty-six million, three hundred ninety-two thousand, one hundred forty-four".