145305215504 has 40 divisors (see below), whose sum is σ = 282428923392. Its totient is φ = 72420688640.

The previous prime is 145305215483. The next prime is 145305215509. The reversal of 145305215504 is 405512503541.

145305215504 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×145305215504² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145305215509) 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, 6934964 + ... + 6955884.

Almost surely, 2^145305215504 is an apocalyptic number.

It is an amenable number.

145305215504 is a deficient number, since it is larger than the sum of its proper divisors (137123707888).

145305215504 is a wasteful number, since it uses less digits than its factorization.

145305215504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22295 (or 22289 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 145305215504 in words is "one hundred forty-five billion, three hundred five million, two hundred fifteen thousand, five hundred four".