222644645000 has 60 divisors (see below), whose sum is σ = 521734589145. Its totient is φ = 89044512000.

The previous prime is 222644644997. The next prime is 222644645023. The reversal of 222644645000 is 546446222.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 8 ways, for example, as 131924409796 + 90720235204 = 363214^2 + 301198^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=333650.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 33361664 + ... + 33368336.

Almost surely, 2^222644645000 is an apocalyptic number.

222644645000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222644645000

222644645000 is an abundant number, since it is smaller than the sum of its proper divisors (299089944145).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222644645000 is an frugal number, since it uses more digits than its factorization.

222644645000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13372 (or 6680 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 35.

The spelling of 222644645000 in words is "two hundred twenty-two billion, six hundred forty-four million, six hundred forty-five thousand".