145422427635544 has 8 divisors (see below), whose sum is σ = 272667051816660. Its totient is φ = 72711213817768.

The previous prime is 145422427635503. The next prime is 145422427635607. The reversal of 145422427635544 is 445536724224541.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×145422427635544² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 9088901727214 + ... + 9088901727229.

Almost surely, 2^{145422427635544} is an apocalyptic number.

It is an amenable number.

145422427635544 is a deficient number, since it is larger than the sum of its proper divisors (127244624181116).

145422427635544 is a wasteful number, since it uses less digits than its factorization.

145422427635544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18177803454449 (or 18177803454445 counting only the distinct ones).

The product of its digits is 129024000, while the sum is 58.

The spelling of 145422427635544 in words is "one hundred forty-five trillion, four hundred twenty-two billion, four hundred twenty-seven million, six hundred thirty-five thousand, five hundred forty-four".