2211166664634 has 16 divisors (see below), whose sum is σ = 4422948739488. Its totient is φ = 736952986512.

The previous prime is 2211166664579. The next prime is 2211166664669. The reversal of 2211166664634 is 4364666611122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25595377 + ... + 25681620.

It is an arithmetic number, because the mean of its divisors is an integer number (276434296218).

Almost surely, 2^{2211166664634} is an apocalyptic number.

2211166664634 is an abundant number, since it is smaller than the sum of its proper divisors (2211782074854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2211166664634 is a wasteful number, since it uses less digits than its factorization.

2211166664634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51284189.

The product of its digits is 1492992, while the sum is 48.

The spelling of 2211166664634 in words is "two trillion, two hundred eleven billion, one hundred sixty-six million, six hundred sixty-four thousand, six hundred thirty-four".