6658105428 has 36 divisors (see below), whose sum is σ = 18124843828. Its totient is φ = 2048647680.

The previous prime is 6658105427. The next prime is 6658105439. The reversal of 6658105428 is 8245018566.

6658105428 is a `hidden beast` number, since 66 + 581 + 0 + 5 + 4 + 2 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3776348304 + 2881757124 = 61452^2 + 53682^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6658105427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7112893 + ... + 7113828.

Almost surely, 2^6658105428 is an apocalyptic number.

It is an amenable number.

6658105428 is an abundant number, since it is smaller than the sum of its proper divisors (11466738400).

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

6658105428 is a wasteful number, since it uses less digits than its factorization.

6658105428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14226744 (or 14226739 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The square root of 6658105428 is about 81597.2145848129. The cubic root of 6658105428 is about 1881.2660692468.

The spelling of 6658105428 in words is "six billion, six hundred fifty-eight million, one hundred five thousand, four hundred twenty-eight".