6654463771840 has 56 divisors (see below), whose sum is σ = 16679938811760. Its totient is φ = 2521691532288.

The previous prime is 6654463771793. The next prime is 6654463771871. The reversal of 6654463771840 is 481773644566.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547236007 + ... + 547248166.

It is an arithmetic number, because the mean of its divisors is an integer number (297856050210).

Almost surely, 2^{6654463771840} is an apocalyptic number.

It is an amenable number.

6654463771840 is an abundant number, since it is smaller than the sum of its proper divisors (10025475039920).

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

6654463771840 is a wasteful number, since it uses less digits than its factorization.

6654463771840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094484209 (or 1094484199 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 61.

The spelling of 6654463771840 in words is "six trillion, six hundred fifty-four billion, four hundred sixty-three million, seven hundred seventy-one thousand, eight hundred forty".