654194480661 has 12 divisors (see below), whose sum is σ = 952388116992. Its totient is φ = 432695561256.

The previous prime is 654194480623. The next prime is 654194480711. The reversal of 654194480661 is 166084491456.

654194480661 is a `hidden beast` number, since 6 + 541 + 94 + 4 + 8 + 0 + 6 + 6 + 1 = 666.

It is not a de Polignac number, because 654194480661 - 2¹⁴ = 654194464277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 654194480598 and 654194480607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654194480761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 286173171 + ... + 286175456.

It is an arithmetic number, because the mean of its divisors is an integer number (79365676416).

Almost surely, 2^654194480661 is an apocalyptic number.

It is an amenable number.

654194480661 is a deficient number, since it is larger than the sum of its proper divisors (298193636331).

654194480661 is a wasteful number, since it uses less digits than its factorization.

654194480661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572348760 (or 572348757 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 654194480661 in words is "six hundred fifty-four billion, one hundred ninety-four million, four hundred eighty thousand, six hundred sixty-one".