2166321602 has 8 divisors (see below), whose sum is σ = 3354304512. Its totient is φ = 1048220100.

The previous prime is 2166321601. The next prime is 2166321617. The reversal of 2166321602 is 2061236612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2166321601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17470274 + ... + 17470397.

It is an arithmetic number, because the mean of its divisors is an integer number (419288064).

Almost surely, 2^2166321602 is an apocalyptic number.

2166321602 is a deficient number, since it is larger than the sum of its proper divisors (1187982910).

2166321602 is a wasteful number, since it uses less digits than its factorization.

2166321602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34940704.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 2166321602 is about 46543.7600758684. The cubic root of 2166321602 is about 1293.9206486158.

The spelling of 2166321602 in words is "two billion, one hundred sixty-six million, three hundred twenty-one thousand, six hundred two".