2166607008 has 48 divisors (see below), whose sum is σ = 6319272960. Its totient is φ = 722202048.

The previous prime is 2166606997. The next prime is 2166607013. The reversal of 2166607008 is 8007066612.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×2166607008² = 9388371854229424128, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1252960 + ... + 1254687.

It is an arithmetic number, because the mean of its divisors is an integer number (131651520).

Almost surely, 2^2166607008 is an apocalyptic number.

It is an amenable number.

2166607008 is an abundant number, since it is smaller than the sum of its proper divisors (4152665952).

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

2166607008 is a wasteful number, since it uses less digits than its factorization.

2166607008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2507666 (or 2507652 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 2166607008 is about 46546.8259712733. The cubic root of 2166607008 is about 1293.9774694344.

The spelling of 2166607008 in words is "two billion, one hundred sixty-six million, six hundred seven thousand, eight".