1008654865641 has 6 divisors (see below), whose sum is σ = 1456945917050. Its totient is φ = 672436577088.

The previous prime is 1008654865633. The next prime is 1008654865643. The reversal of 1008654865641 is 1465684568001.

It is a happy number.

1008654865641 is a `hidden beast` number, since 1 + 0 + 0 + 8 + 6 + 548 + 6 + 56 + 41 = 666.

It can be written as a sum of positive squares in only one way, i.e., 650208386025 + 358446479616 = 806355^2 + 598704^2 .

It is not a de Polignac number, because 1008654865641 - 2³ = 1008654865633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1008654865643) 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, 56036381416 + ... + 56036381433.

Almost surely, 2^{1008654865641} is an apocalyptic number.

It is an amenable number.

1008654865641 is a deficient number, since it is larger than the sum of its proper divisors (448291051409).

1008654865641 is a wasteful number, since it uses less digits than its factorization.

1008654865641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112072762855 (or 112072762852 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 54.

The spelling of 1008654865641 in words is "one trillion, eight billion, six hundred fifty-four million, eight hundred sixty-five thousand, six hundred forty-one".