6654648358638 has 96 divisors (see below), whose sum is σ = 16653981576960. Its totient is φ = 1881056908800.

The previous prime is 6654648358549. The next prime is 6654648358691. The reversal of 6654648358638 is 8368538464566.

6654648358638 is a `hidden beast` number, since 6 + 6 + 5 + 4 + 6 + 4 + 8 + 3 + 586 + 38 = 666.

It is a super-3 number, since 3×6654648358638³ (a number of 39 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34749433 + ... + 34940411.

It is an arithmetic number, because the mean of its divisors is an integer number (173478974760).

Almost surely, 2^{6654648358638} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6654648358638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8326990788480).

6654648358638 is an abundant number, since it is smaller than the sum of its proper divisors (9999333218322).

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

6654648358638 is a wasteful number, since it uses less digits than its factorization.

6654648358638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193942 (or 193939 counting only the distinct ones).

The product of its digits is 2388787200, while the sum is 72.

The spelling of 6654648358638 in words is "six trillion, six hundred fifty-four billion, six hundred forty-eight million, three hundred fifty-eight thousand, six hundred thirty-eight".