2154008800668 has 12 divisors (see below), whose sum is σ = 5026020534920. Its totient is φ = 718002933552.

The previous prime is 2154008800651. The next prime is 2154008800717. The reversal of 2154008800668 is 8660088004512.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89750366683 + ... + 89750366706.

Almost surely, 2^{2154008800668} is an apocalyptic number.

It is an amenable number.

2154008800668 is an abundant number, since it is smaller than the sum of its proper divisors (2872011734252).

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

2154008800668 is a wasteful number, since it uses less digits than its factorization.

2154008800668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179500733396 (or 179500733394 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 48.

The spelling of 2154008800668 in words is "two trillion, one hundred fifty-four billion, eight million, eight hundred thousand, six hundred sixty-eight".