2162604866 has 4 divisors (see below), whose sum is σ = 3243907302. Its totient is φ = 1081302432.

The previous prime is 2162604863. The next prime is 2162604893. The reversal of 2162604866 is 6684062612.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1661785225 + 500819641 = 40765^2 + 22379^2 .

It is not an unprimeable number, because it can be changed into a prime (2162604863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540651215 + ... + 540651218.

Almost surely, 2^2162604866 is an apocalyptic number.

2162604866 is a deficient number, since it is larger than the sum of its proper divisors (1081302436).

2162604866 is a wasteful number, since it uses less digits than its factorization.

2162604866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081302435.

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 2162604866 is about 46503.8156068940. The cubic root of 2162604866 is about 1293.1802361706.

The spelling of 2162604866 in words is "two billion, one hundred sixty-two million, six hundred four thousand, eight hundred sixty-six".