145816438708322 has 54 divisors (see below), whose sum is σ = 225269062709067. Its totient is φ = 70789417841928.

The previous prime is 145816438708277. The next prime is 145816438708387. The reversal of 145816438708322 is 223807834618541.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 72908219354161 + 72908219354161 = 8538631^2 + 8538631^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=8538631.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 111565751993 + ... + 111565753299.

Almost surely, 2^{145816438708322} is an apocalyptic number.

145816438708322 is a deficient number, since it is larger than the sum of its proper divisors (79452624000745).

145816438708322 is an frugal number, since it uses more digits than its factorization.

145816438708322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2988 (or 1495 counting only the distinct ones).

The product of its (nonzero) digits is 61931520, while the sum is 62.

The spelling of 145816438708322 in words is "one hundred forty-five trillion, eight hundred sixteen billion, four hundred thirty-eight million, seven hundred eight thousand, three hundred twenty-two".