27222056657 has 8 divisors (see below), whose sum is σ = 28038371136. Its totient is φ = 26409983472.

The previous prime is 27222056639. The next prime is 27222056699. The reversal of 27222056657 is 75665022272.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 27222056657 - 2⁸ = 27222056401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27222056627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1047293 + ... + 1072970.

It is an arithmetic number, because the mean of its divisors is an integer number (3504796392).

Almost surely, 2^27222056657 is an apocalyptic number.

It is an amenable number.

27222056657 is a deficient number, since it is larger than the sum of its proper divisors (816314479).

27222056657 is a wasteful number, since it uses less digits than its factorization.

27222056657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120647.

The product of its (nonzero) digits is 705600, while the sum is 44.

The spelling of 27222056657 in words is "twenty-seven billion, two hundred twenty-two million, fifty-six thousand, six hundred fifty-seven".