6654818189457 has 6 divisors (see below), whose sum is σ = 9612515162562. Its totient is φ = 4436545459632.

The previous prime is 6654818189431. The next prime is 6654818189477. The reversal of 6654818189457 is 7549818184566.

It is a happy number.

6654818189457 is a `hidden beast` number, since 6 + 6 + 5 + 481 + 8 + 1 + 8 + 94 + 57 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5569618880016 + 1085199309441 = 2360004^2 + 1041729^2 .

It is not a de Polignac number, because 6654818189457 - 2¹² = 6654818185361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6654818189477) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 369712121628 + ... + 369712121645.

It is an arithmetic number, because the mean of its divisors is an integer number (1602085860427).

Almost surely, 2^{6654818189457} is an apocalyptic number.

It is an amenable number.

6654818189457 is a deficient number, since it is larger than the sum of its proper divisors (2957696973105).

6654818189457 is a wasteful number, since it uses less digits than its factorization.

6654818189457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739424243279 (or 739424243276 counting only the distinct ones).

The product of its digits is 464486400, while the sum is 72.

The spelling of 6654818189457 in words is "six trillion, six hundred fifty-four billion, eight hundred eighteen million, one hundred eighty-nine thousand, four hundred fifty-seven".