2153663005165 has 32 divisors (see below), whose sum is σ = 2972091338496. Its totient is φ = 1467557498880.

The previous prime is 2153663005129. The next prime is 2153663005187. The reversal of 2153663005165 is 5615003663512.

It is not a de Polignac number, because 2153663005165 - 2²³ = 2153654616557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12710050 + ... + 12878380.

It is an arithmetic number, because the mean of its divisors is an integer number (92877854328).

Almost surely, 2^{2153663005165} is an apocalyptic number.

It is an amenable number.

2153663005165 is a deficient number, since it is larger than the sum of its proper divisors (818428333331).

2153663005165 is a wasteful number, since it uses less digits than its factorization.

2153663005165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170629.

The product of its (nonzero) digits is 486000, while the sum is 43.

Adding to 2153663005165 its reverse (5615003663512), we get a palindrome (7768666668677).

The spelling of 2153663005165 in words is "two trillion, one hundred fifty-three billion, six hundred sixty-three million, five thousand, one hundred sixty-five".