6654517390080 has 720 divisors, whose sum is σ = 27231108436224. Its totient is φ = 1520001884160.

The previous prime is 6654517390057. The next prime is 6654517390109. The reversal of 6654517390080 is 800937154566.

6654517390080 is a `hidden beast` number, since 6 + 6 + 545 + 1 + 7 + 3 + 90 + 0 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 6654517389999 and 6654517390026.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1749805459 + ... + 1749809261.

Almost surely, 2^{6654517390080} is an apocalyptic number.

6654517390080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6654517390080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13615554218112).

6654517390080 is an abundant number, since it is smaller than the sum of its proper divisors (20576591046144).

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

6654517390080 is a wasteful number, since it uses less digits than its factorization.

6654517390080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6254 (or 6231 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 6654517390080 in words is "six trillion, six hundred fifty-four billion, five hundred seventeen million, three hundred ninety thousand, eighty".