145222665828 has 24 divisors (see below), whose sum is σ = 350537470080. Its totient is φ = 46738329120.

The previous prime is 145222665793. The next prime is 145222665871. The reversal of 145222665828 is 828566222541.

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, 208652908 + ... + 208653603.

It is an arithmetic number, because the mean of its divisors is an integer number (14605727920).

Almost surely, 2^145222665828 is an apocalyptic number.

It is an amenable number.

145222665828 is an abundant number, since it is smaller than the sum of its proper divisors (205314804252).

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

145222665828 is a wasteful number, since it uses less digits than its factorization.

145222665828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417306547 (or 417306545 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 51.

The spelling of 145222665828 in words is "one hundred forty-five billion, two hundred twenty-two million, six hundred sixty-five thousand, eight hundred twenty-eight".