222679345952 has 162 divisors, whose sum is σ = 542512555011. Its totient is φ = 89692108800.

The previous prime is 222679345913. The next prime is 222679345961. The reversal of 222679345952 is 259543976222.

It is a happy number.

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 5 ways, for example, as 221091801616 + 1587544336 = 470204^2 + 39844^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=333676.

It is a super-2 number, since 2×222679345952² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 317659202 + ... + 317659902.

Almost surely, 2^222679345952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222679345952

222679345952 is an abundant number, since it is smaller than the sum of its proper divisors (319833209059).

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

222679345952 is an frugal number, since it uses more digits than its factorization.

222679345952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460 (or 727 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 56.

The spelling of 222679345952 in words is "two hundred twenty-two billion, six hundred seventy-nine million, three hundred forty-five thousand, nine hundred fifty-two".