2478166236 has 144 divisors (see below), whose sum is σ = 7836873408. Its totient is φ = 642816000.

The previous prime is 2478166151. The next prime is 2478166241. The reversal of 2478166236 is 6326618742.

2478166236 is a `hidden beast` number, since 2 + 4 + 7 + 8 + 16 + 623 + 6 = 666.

It is a super-2 number, since 2×2478166236² = 12282615786500815392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2478166191 and 2478166200.

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 47 ways as a sum of consecutive naturals, for example, 193636 + ... + 206036.

It is an arithmetic number, because the mean of its divisors is an integer number (54422732).

Almost surely, 2^2478166236 is an apocalyptic number.

2478166236 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2478166236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3918436704).

2478166236 is an abundant number, since it is smaller than the sum of its proper divisors (5358707172).

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

2478166236 is a wasteful number, since it uses less digits than its factorization.

2478166236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12492 (or 12487 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 2478166236 is about 49781.1835536280. The cubic root of 2478166236 is about 1353.2461863745.

The spelling of 2478166236 in words is "two billion, four hundred seventy-eight million, one hundred sixty-six thousand, two hundred thirty-six".