6642060056 has 8 divisors (see below), whose sum is σ = 12453862620. Its totient is φ = 3321030024.

The previous prime is 6642060053. The next prime is 6642060127. The reversal of 6642060056 is 6500602466.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 6642059998 and 6642060025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6642060053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415128746 + ... + 415128761.

Almost surely, 2^6642060056 is an apocalyptic number.

It is an amenable number.

6642060056 is a deficient number, since it is larger than the sum of its proper divisors (5811802564).

6642060056 is a wasteful number, since it uses less digits than its factorization.

6642060056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830257513 (or 830257509 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 6642060056 is about 81498.8346910556. The cubic root of 6642060056 is about 1879.7536322698.

The spelling of 6642060056 in words is "six billion, six hundred forty-two million, sixty thousand, fifty-six".