2166427410 has 64 divisors (see below), whose sum is σ = 5953906944. Its totient is φ = 494208000.

The previous prime is 2166427357. The next prime is 2166427433. The reversal of 2166427410 is 147246612.

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, 99510 + ... + 119310.

It is an arithmetic number, because the mean of its divisors is an integer number (93029796).

Almost surely, 2^2166427410 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2166427410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2976953472).

2166427410 is an abundant number, since it is smaller than the sum of its proper divisors (3787479534).

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

2166427410 is a wasteful number, since it uses less digits than its factorization.

2166427410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20339.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 2166427410 is about 46544.8967127439. The cubic root of 2166427410 is about 1293.9417142672.

The spelling of 2166427410 in words is "two billion, one hundred sixty-six million, four hundred twenty-seven thousand, four hundred ten".