145446344555 has 8 divisors (see below), whose sum is σ = 174540679872. Its totient is φ = 116353698048.

The previous prime is 145446344531. The next prime is 145446344557. The reversal of 145446344555 is 555443644541.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145446344555 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145446344557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224294 + ... + 584123.

It is an arithmetic number, because the mean of its divisors is an integer number (21817584984).

Almost surely, 2^145446344555 is an apocalyptic number.

145446344555 is a deficient number, since it is larger than the sum of its proper divisors (29094335317).

145446344555 is an equidigital number, since it uses as much as digits as its factorization.

145446344555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844405.

The product of its digits is 11520000, while the sum is 50.

The spelling of 145446344555 in words is "one hundred forty-five billion, four hundred forty-six million, three hundred forty-four thousand, five hundred fifty-five".