2166276162644 has 48 divisors (see below), whose sum is σ = 4356630532800. Its totient is φ = 932128704000.

The previous prime is 2166276162637. The next prime is 2166276162653. The reversal of 2166276162644 is 4462616726612.

It is a super-2 number, since 2×2166276162644² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91772 + ... + 2083500.

It is an arithmetic number, because the mean of its divisors is an integer number (90763136100).

Almost surely, 2^{2166276162644} is an apocalyptic number.

It is an amenable number.

2166276162644 is an abundant number, since it is smaller than the sum of its proper divisors (2190354370156).

2166276162644 is a wasteful number, since it uses less digits than its factorization.

2166276162644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993064 (or 1993062 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 53.

The spelling of 2166276162644 in words is "two trillion, one hundred sixty-six billion, two hundred seventy-six million, one hundred sixty-two thousand, six hundred forty-four".