2155653666003 has 8 divisors (see below), whose sum is σ = 2944307446416. Its totient is φ = 1402051164800.

The previous prime is 2155653665993. The next prime is 2155653666011. The reversal of 2155653666003 is 3006663565512.

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 2155653666003 - 2⁸ = 2155653665747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2155653666013) 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, 8762819658 + ... + 8762819903.

It is an arithmetic number, because the mean of its divisors is an integer number (368038430802).

Almost surely, 2^{2155653666003} is an apocalyptic number.

2155653666003 is a deficient number, since it is larger than the sum of its proper divisors (788653780413).

2155653666003 is a wasteful number, since it uses less digits than its factorization.

2155653666003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17525639605.

The product of its (nonzero) digits is 2916000, while the sum is 48.

The spelling of 2155653666003 in words is "two trillion, one hundred fifty-five billion, six hundred fifty-three million, six hundred sixty-six thousand, three".