5660016021 has 24 divisors (see below), whose sum is σ = 9249143904. Its totient is φ = 3430311120.

The previous prime is 5660016013. The next prime is 5660016041. The reversal of 5660016021 is 1206100665.

It is a happy number.

5660016021 is a `hidden beast` number, since 56 + 6 + 0 + 0 + 1 + 602 + 1 = 666.

It is not a de Polignac number, because 5660016021 - 2³ = 5660016013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5660016041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1056066 + ... + 1061411.

It is an arithmetic number, because the mean of its divisors is an integer number (385380996).

Almost surely, 2^5660016021 is an apocalyptic number.

It is an amenable number.

5660016021 is a deficient number, since it is larger than the sum of its proper divisors (3589127883).

5660016021 is a wasteful number, since it uses less digits than its factorization.

5660016021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2117503 (or 2117491 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 5660016021 is about 75233.0779710627. The cubic root of 5660016021 is about 1782.1293396582.

Adding to 5660016021 its reverse (1206100665), we get a palindrome (6866116686).

The spelling of 5660016021 in words is "five billion, six hundred sixty million, sixteen thousand, twenty-one".