145232445550 has 12 divisors (see below), whose sum is σ = 270132348816. Its totient is φ = 58092978200.

The previous prime is 145232445517. The next prime is 145232445563. The reversal of 145232445550 is 55544232541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1452324406 + ... + 1452324505.

It is an arithmetic number, because the mean of its divisors is an integer number (22511029068).

Almost surely, 2^145232445550 is an apocalyptic number.

145232445550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145232445550 is a deficient number, since it is larger than the sum of its proper divisors (124899903266).

145232445550 is a wasteful number, since it uses less digits than its factorization.

145232445550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2904648923 (or 2904648918 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 40.

The spelling of 145232445550 in words is "one hundred forty-five billion, two hundred thirty-two million, four hundred forty-five thousand, five hundred fifty".