6655239537408 has 1728 divisors, whose sum is σ = 25424715423744. Its totient is φ = 1637911756800.

The previous prime is 6655239537403. The next prime is 6655239537469. The reversal of 6655239537408 is 8047359325566.

It is a happy number.

6655239537408 is a `hidden beast` number, since 6 + 6 + 5 + 52 + 3 + 9 + 537 + 40 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (6655239537403) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 48578390716 + ... + 48578390852.

Almost surely, 2^{6655239537408} 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 6655239537408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12712357711872).

6655239537408 is an abundant number, since it is smaller than the sum of its proper divisors (18769475886336).

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

6655239537408 is a wasteful number, since it uses less digits than its factorization.

6655239537408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 163296000, while the sum is 63.

The spelling of 6655239537408 in words is "six trillion, six hundred fifty-five billion, two hundred thirty-nine million, five hundred thirty-seven thousand, four hundred eight".