2166223404052 has 96 divisors (see below), whose sum is σ = 4108772304000. Its totient is φ = 995939112960.

The previous prime is 2166223403969. The next prime is 2166223404089. The reversal of 2166223404052 is 2504043226612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 793777824 + ... + 793780552.

It is an arithmetic number, because the mean of its divisors is an integer number (42799711500).

Almost surely, 2^{2166223404052} is an apocalyptic number.

It is an amenable number.

2166223404052 is a deficient number, since it is larger than the sum of its proper divisors (1942548899948).

2166223404052 is a wasteful number, since it uses less digits than its factorization.

2166223404052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4009 (or 4007 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 2166223404052 in words is "two trillion, one hundred sixty-six billion, two hundred twenty-three million, four hundred four thousand, fifty-two".