2165203006634 has 16 divisors (see below), whose sum is σ = 3403193391360. Its totient is φ = 1031199098160.

The previous prime is 2165203006613. The next prime is 2165203006643. The reversal of 2165203006634 is 4366003025612.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98461037 + ... + 98483024.

It is an arithmetic number, because the mean of its divisors is an integer number (212699586960).

Almost surely, 2^{2165203006634} is an apocalyptic number.

2165203006634 is a deficient number, since it is larger than the sum of its proper divisors (1237990384726).

2165203006634 is a wasteful number, since it uses less digits than its factorization.

2165203006634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196944325.

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 2165203006634 in words is "two trillion, one hundred sixty-five billion, two hundred three million, six thousand, six hundred thirty-four".