2166099370750 has 256 divisors, whose sum is σ = 5030009487360. Its totient is φ = 682516800000.

The previous prime is 2166099370733. The next prime is 2166099370777. The reversal of 2166099370750 is 570739906612.

It is a junction number, because it is equal to n+sod(n) for n = 2166099370691 and 2166099370700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 95956965 + ... + 95979535.

It is an arithmetic number, because the mean of its divisors is an integer number (19648474560).

Almost surely, 2^{2166099370750} is an apocalyptic number.

2166099370750 is an abundant number, since it is smaller than the sum of its proper divisors (2863910116610).

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

2166099370750 is a wasteful number, since it uses less digits than its factorization.

2166099370750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22716 (or 22706 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 55.

The spelling of 2166099370750 in words is "two trillion, one hundred sixty-six billion, ninety-nine million, three hundred seventy thousand, seven hundred fifty".