2164654635203 has 4 divisors (see below), whose sum is σ = 2164677072768. Its totient is φ = 2164632197640.

The previous prime is 2164654635193. The next prime is 2164654635239. The reversal of 2164654635203 is 3025364564612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2164654635203 - 2⁶ = 2164654635139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2164654637203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11073443 + ... + 11267228.

It is an arithmetic number, because the mean of its divisors is an integer number (541169268192).

Almost surely, 2^{2164654635203} is an apocalyptic number.

2164654635203 is a deficient number, since it is larger than the sum of its proper divisors (22437565).

2164654635203 is an equidigital number, since it uses as much as digits as its factorization.

2164654635203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22437564.

The product of its (nonzero) digits is 3110400, while the sum is 47.

The spelling of 2164654635203 in words is "two trillion, one hundred sixty-four billion, six hundred fifty-four million, six hundred thirty-five thousand, two hundred three".