2153665770707 has 24 divisors (see below), whose sum is σ = 2413567119600. Its totient is φ = 1919743327040.

The previous prime is 2153665770691. The next prime is 2153665770721. The reversal of 2153665770707 is 7070775663512.

It is not a de Polignac number, because 2153665770707 - 2⁴ = 2153665770691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2153665770797) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2389313 + ... + 3164829.

It is an arithmetic number, because the mean of its divisors is an integer number (100565296650).

Almost surely, 2^{2153665770707} is an apocalyptic number.

2153665770707 is a deficient number, since it is larger than the sum of its proper divisors (259901348893).

2153665770707 is a wasteful number, since it uses less digits than its factorization.

2153665770707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775987 (or 775976 counting only the distinct ones).

The product of its (nonzero) digits is 12965400, while the sum is 56.

The spelling of 2153665770707 in words is "two trillion, one hundred fifty-three billion, six hundred sixty-five million, seven hundred seventy thousand, seven hundred seven".