6020545644 has 84 divisors (see below), whose sum is σ = 16013665416. Its totient is φ = 1979287488.

The previous prime is 6020545639. The next prime is 6020545649. The reversal of 6020545644 is 4465450206.

6020545644 is a `hidden beast` number, since 6 + 0 + 2 + 0 + 5 + 4 + 5 + 644 = 666.

It is an interprime number because it is at equal distance from previous prime (6020545639) and next prime (6020545649).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 6020545599 and 6020545608.

It is not an unprimeable number, because it can be changed into a prime (6020545649) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 198727 + ... + 227009.

It is an arithmetic number, because the mean of its divisors is an integer number (190638874).

Almost surely, 2^6020545644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6020545644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8006832708).

6020545644 is an abundant number, since it is smaller than the sum of its proper divisors (9993119772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6020545644 is a wasteful number, since it uses less digits than its factorization.

6020545644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28378 (or 28361 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The square root of 6020545644 is about 77592.1751467247. The cubic root of 6020545644 is about 1819.1923361565.

The spelling of 6020545644 in words is "six billion, twenty million, five hundred forty-five thousand, six hundred forty-four".