2722257076666 has 4 divisors (see below), whose sum is σ = 4083385615002. Its totient is φ = 1361128538332.

The previous prime is 2722257076661. The next prime is 2722257076681. The reversal of 2722257076666 is 6666707522272.

2722257076666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 2588285704225 + 133971372441 = 1608815^2 + 366021^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2722257076666.

It is not an unprimeable number, because it can be changed into a prime (2722257076661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680564269165 + ... + 680564269168.

Almost surely, 2^{2722257076666} is an apocalyptic number.

2722257076666 is a deficient number, since it is larger than the sum of its proper divisors (1361128538336).

2722257076666 is a wasteful number, since it uses less digits than its factorization.

2722257076666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361128538335.

The product of its (nonzero) digits is 35562240, while the sum is 58.

The spelling of 2722257076666 in words is "two trillion, seven hundred twenty-two billion, two hundred fifty-seven million, seventy-six thousand, six hundred sixty-six".