222772427257645 has 8 divisors (see below), whose sum is σ = 267326993312280. Its totient is φ = 178217888070720.

The previous prime is 222772427257613. The next prime is 222772427257729. The reversal of 222772427257645 is 546752724277222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 119531932160356 + 103240495097289 = 10933066^2 + 10160733^2 .

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

It is not a de Polignac number, because 222772427257645 - 2⁵ = 222772427257613 is a prime.

It is a super-3 number, since 3×222772427257645³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26100811 + ... + 33567799.

It is an arithmetic number, because the mean of its divisors is an integer number (33415874164035).

Almost surely, 2^{222772427257645} is an apocalyptic number.

It is an amenable number.

222772427257645 is a deficient number, since it is larger than the sum of its proper divisors (44554566054635).

222772427257645 is an equidigital number, since it uses as much as digits as its factorization.

222772427257645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13433855.

The product of its digits is 368793600, while the sum is 64.

The spelling of 222772427257645 in words is "two hundred twenty-two trillion, seven hundred seventy-two billion, four hundred twenty-seven million, two hundred fifty-seven thousand, six hundred forty-five".