654638322688 has 176 divisors, whose sum is σ = 1565017375744. Its totient is φ = 267783045120.

The previous prime is 654638322671. The next prime is 654638322703. The reversal of 654638322688 is 886223836456.

It is a happy number.

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, 16201006 + ... + 16241362.

Almost surely, 2^654638322688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 654638322688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (782508687872).

654638322688 is an abundant number, since it is smaller than the sum of its proper divisors (910379053056).

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

654638322688 is a wasteful number, since it uses less digits than its factorization.

654638322688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40488 (or 40470 counting only the distinct ones).

The product of its digits is 79626240, while the sum is 61.

The spelling of 654638322688 in words is "six hundred fifty-four billion, six hundred thirty-eight million, three hundred twenty-two thousand, six hundred eighty-eight".