2154008800669 has 8 divisors (see below), whose sum is σ = 2349845467200. Its totient is φ = 1958175081600.

The previous prime is 2154008800651. The next prime is 2154008800717. The reversal of 2154008800669 is 9660088004512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2154008800669 - 2¹¹ = 2154008798621 is a prime.

It is a super-2 number, since 2×2154008800669² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154008800609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 961357 + ... + 2287405.

It is an arithmetic number, because the mean of its divisors is an integer number (293730683400).

Almost surely, 2^{2154008800669} is an apocalyptic number.

It is an amenable number.

2154008800669 is a deficient number, since it is larger than the sum of its proper divisors (195836666531).

2154008800669 is a wasteful number, since it uses less digits than its factorization.

2154008800669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473731.

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 2154008800669 in words is "two trillion, one hundred fifty-four billion, eight million, eight hundred thousand, six hundred sixty-nine".