6642574848 has 720 divisors, whose sum is σ = 25130641536. Its totient is φ = 1672151040.

The previous prime is 6642574837. The next prime is 6642574867. The reversal of 6642574848 is 8484752466.

It is a happy number.

6642574848 is a `hidden beast` number, since 6 + 64 + 2 + 574 + 8 + 4 + 8 = 666.

It is a super-2 number, since 2×6642574848² = 88247601222564446208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6642574794 and 6642574803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 90994140 + ... + 90994212.

Almost surely, 2^6642574848 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 6642574848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12565320768).

6642574848 is an abundant number, since it is smaller than the sum of its proper divisors (18488066688).

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

6642574848 is a wasteful number, since it uses less digits than its factorization.

6642574848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 129 counting only the distinct ones).

The product of its digits is 10321920, while the sum is 54.

The square root of 6642574848 is about 81501.9929081492. The cubic root of 6642574848 is about 1879.8021943688.

The spelling of 6642574848 in words is "six billion, six hundred forty-two million, five hundred seventy-four thousand, eight hundred forty-eight".