145446344553 has 16 divisors (see below), whose sum is σ = 202430261376. Its totient is φ = 92716250880.

The previous prime is 145446344531. The next prime is 145446344557. The reversal of 145446344553 is 355443644541.

It is not a de Polignac number, because 145446344553 - 2¹⁸ = 145446082409 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 163918 + ... + 563703.

It is an arithmetic number, because the mean of its divisors is an integer number (12651891336).

Almost surely, 2^145446344553 is an apocalyptic number.

It is an amenable number.

145446344553 is a deficient number, since it is larger than the sum of its proper divisors (56983916823).

145446344553 is a wasteful number, since it uses less digits than its factorization.

145446344553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730544.

The product of its digits is 6912000, while the sum is 48.

The spelling of 145446344553 in words is "one hundred forty-five billion, four hundred forty-six million, three hundred forty-four thousand, five hundred fifty-three".