145520444502 has 48 divisors (see below), whose sum is σ = 316326187008. Its totient is φ = 48348281520.

The previous prime is 145520444491. The next prime is 145520444549. The reversal of 145520444502 is 205444025541.

145520444502 is a `hidden beast` number, since 1 + 4 + 5 + 5 + 204 + 445 + 0 + 2 = 666.

It is a super-3 number, since 3×145520444502³ (a number of 34 digits) contains 333 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 (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8703883 + ... + 8720585.

It is an arithmetic number, because the mean of its divisors is an integer number (6590128896).

Almost surely, 2^145520444502 is an apocalyptic number.

145520444502 is an abundant number, since it is smaller than the sum of its proper divisors (170805742506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145520444502 is a wasteful number, since it uses less digits than its factorization.

145520444502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18265 (or 18262 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 36.

The spelling of 145520444502 in words is "one hundred forty-five billion, five hundred twenty million, four hundred forty-four thousand, five hundred two".