72820160071 has 2 divisors, whose sum is σ = 72820160072. Its totient is φ = 72820160070.

The previous prime is 72820160027. The next prime is 72820160129. The reversal of 72820160071 is 17006102827.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72820160071 - 2¹³ = 72820151879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72820160771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36410080035 + 36410080036.

It is an arithmetic number, because the mean of its divisors is an integer number (36410080036).

Almost surely, 2^72820160071 is an apocalyptic number.

72820160071 is a deficient number, since it is larger than the sum of its proper divisors (1).

72820160071 is an equidigital number, since it uses as much as digits as its factorization.

72820160071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 34.

Adding to 72820160071 its reverse (17006102827), we get a palindrome (89826262898).

The spelling of 72820160071 in words is "seventy-two billion, eight hundred twenty million, one hundred sixty thousand, seventy-one".