654389537605 has 16 divisors (see below), whose sum is σ = 798614187840. Its totient is φ = 514614627072.

The previous prime is 654389537591. The next prime is 654389537617. The reversal of 654389537605 is 506735983456.

It is a cyclic number.

It is not a de Polignac number, because 654389537605 - 2¹⁵ = 654389504837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8983942 + ... + 9056488.

It is an arithmetic number, because the mean of its divisors is an integer number (49913386740).

Almost surely, 2^654389537605 is an apocalyptic number.

It is an amenable number.

654389537605 is a deficient number, since it is larger than the sum of its proper divisors (144224650235).

654389537605 is a wasteful number, since it uses less digits than its factorization.

654389537605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103188.

The product of its (nonzero) digits is 81648000, while the sum is 61.

The spelling of 654389537605 in words is "six hundred fifty-four billion, three hundred eighty-nine million, five hundred thirty-seven thousand, six hundred five".