73020213475065 has 24 divisors (see below), whose sum is σ = 129655403441928. Its totient is φ = 37994257416960.

The previous prime is 73020213475063. The next prime is 73020213475067. The reversal of 73020213475065 is 56057431202037.

73020213475065 is a `hidden beast` number, since 7 + 3 + 0 + 2 + 0 + 2 + 134 + 7 + 506 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (73020213475063) and next prime (73020213475067).

It can be written as a sum of positive squares in 4 ways, for example, as 63691626384 + 72956521848681 = 252372^2 + 8541459^2 .

It is not a de Polignac number, because 73020213475065 - 2¹ = 73020213475063 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 73020213475065.

It is not an unprimeable number, because it can be changed into a prime (73020213475063) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19788673894 + ... + 19788677583.

It is an arithmetic number, because the mean of its divisors is an integer number (5402308476747).

Almost surely, 2^{73020213475065} is an apocalyptic number.

It is an amenable number.

73020213475065 is a deficient number, since it is larger than the sum of its proper divisors (56635189966863).

73020213475065 is a wasteful number, since it uses less digits than its factorization.

73020213475065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39577351529 (or 39577351526 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 45.

The spelling of 73020213475065 in words is "seventy-three trillion, twenty billion, two hundred thirteen million, four hundred seventy-five thousand, sixty-five".