2166260948 has 12 divisors (see below), whose sum is σ = 3791694900. Its totient is φ = 1082919552.

The previous prime is 2166260917. The next prime is 2166260959. The reversal of 2166260948 is 8490626612.

It can be written as a sum of positive squares in 2 ways, for example, as 166203664 + 2000057284 = 12892^2 + 44722^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2166260899 and 2166260908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28373 + ... + 71676.

It is an arithmetic number, because the mean of its divisors is an integer number (315974575).

Almost surely, 2^2166260948 is an apocalyptic number.

It is an amenable number.

2166260948 is a deficient number, since it is larger than the sum of its proper divisors (1625433952).

2166260948 is a wasteful number, since it uses less digits than its factorization.

2166260948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105466 (or 105464 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 2166260948 is about 46543.1084909463. The cubic root of 2166260948 is about 1293.9085725086.

The spelling of 2166260948 in words is "two billion, one hundred sixty-six million, two hundred sixty thousand, nine hundred forty-eight".