145555819626 has 64 divisors (see below), whose sum is σ = 344307674880. Its totient is φ = 40137431040.

The previous prime is 145555819531. The next prime is 145555819681. The reversal of 145555819626 is 626918555541.

145555819626 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3238266 + ... + 3282906.

It is an arithmetic number, because the mean of its divisors is an integer number (5379807420).

Almost surely, 2^145555819626 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145555819626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172153837440).

145555819626 is an abundant number, since it is smaller than the sum of its proper divisors (198751855254).

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

145555819626 is a wasteful number, since it uses less digits than its factorization.

145555819626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47359.

The product of its digits is 12960000, while the sum is 57.

The spelling of 145555819626 in words is "one hundred forty-five billion, five hundred fifty-five million, eight hundred nineteen thousand, six hundred twenty-six".