2664643625266 has 8 divisors (see below), whose sum is σ = 4567960500480. Its totient is φ = 1141990125108.

The previous prime is 2664643625131. The next prime is 2664643625279. The reversal of 2664643625266 is 6625263464662.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2664643625266.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95165843746 + ... + 95165843773.

It is an arithmetic number, because the mean of its divisors is an integer number (570995062560).

Almost surely, 2^{2664643625266} is an apocalyptic number.

2664643625266 is a deficient number, since it is larger than the sum of its proper divisors (1903316875214).

2664643625266 is a wasteful number, since it uses less digits than its factorization.

2664643625266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190331687528.

The product of its digits is 89579520, while the sum is 58.

The spelling of 2664643625266 in words is "two trillion, six hundred sixty-four billion, six hundred forty-three million, six hundred twenty-five thousand, two hundred sixty-six".