145555912228 has 24 divisors (see below), whose sum is σ = 270350287200. Its totient is φ = 68333409408.

The previous prime is 145555912219. The next prime is 145555912231. The reversal of 145555912228 is 822219555541.

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, 2525838 + ... + 2582821.

It is an arithmetic number, because the mean of its divisors is an integer number (11264595300).

Almost surely, 2^145555912228 is an apocalyptic number.

It is an amenable number.

145555912228 is a deficient number, since it is larger than the sum of its proper divisors (124794374972).

145555912228 is a wasteful number, since it uses less digits than its factorization.

145555912228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5109099 (or 5109097 counting only the distinct ones).

The product of its digits is 1440000, while the sum is 49.

The spelling of 145555912228 in words is "one hundred forty-five billion, five hundred fifty-five million, nine hundred twelve thousand, two hundred twenty-eight".