145618844015 has 32 divisors (see below), whose sum is σ = 190828032000. Its totient is φ = 106266504960.

The previous prime is 145618844009. The next prime is 145618844023. The reversal of 145618844015 is 510448816541.

It is not a de Polignac number, because 145618844015 - 2¹⁰ = 145618842991 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 461819 + ... + 710291.

It is an arithmetic number, because the mean of its divisors is an integer number (5963376000).

Almost surely, 2^145618844015 is an apocalyptic number.

145618844015 is a deficient number, since it is larger than the sum of its proper divisors (45209187985).

145618844015 is a wasteful number, since it uses less digits than its factorization.

145618844015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248727.

The product of its (nonzero) digits is 614400, while the sum is 47.

The spelling of 145618844015 in words is "one hundred forty-five billion, six hundred eighteen million, eight hundred forty-four thousand, fifteen".