20327605544 has 16 divisors (see below), whose sum is σ = 40120274400. Its totient is φ = 9628865712.

The previous prime is 20327605469. The next prime is 20327605547. The reversal of 20327605544 is 44550672302.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 20327605498 and 20327605507.

It is not an unprimeable number, because it can be changed into a prime (20327605547) 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, 66866972 + ... + 66867275.

It is an arithmetic number, because the mean of its divisors is an integer number (2507517150).

Almost surely, 2^20327605544 is an apocalyptic number.

It is an amenable number.

20327605544 is a deficient number, since it is larger than the sum of its proper divisors (19792668856).

20327605544 is a wasteful number, since it uses less digits than its factorization.

20327605544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133734272 (or 133734268 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 38.

The spelling of 20327605544 in words is "twenty billion, three hundred twenty-seven million, six hundred five thousand, five hundred forty-four".