2664678206 has 4 divisors (see below), whose sum is σ = 3997017312. Its totient is φ = 1332339102.

The previous prime is 2664678157. The next prime is 2664678221. The reversal of 2664678206 is 6028764662.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 666169550 + ... + 666169553.

It is an arithmetic number, because the mean of its divisors is an integer number (999254328).

Almost surely, 2^2664678206 is an apocalyptic number.

2664678206 is a deficient number, since it is larger than the sum of its proper divisors (1332339106).

2664678206 is a wasteful number, since it uses less digits than its factorization.

2664678206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332339105.

The product of its (nonzero) digits is 1161216, while the sum is 47.

The square root of 2664678206 is about 51620.5211713326. The cubic root of 2664678206 is about 1386.3777825874.

The spelling of 2664678206 in words is "two billion, six hundred sixty-four million, six hundred seventy-eight thousand, two hundred six".