164020061837 has 2 divisors, whose sum is σ = 164020061838. Its totient is φ = 164020061836.

The previous prime is 164020061819. The next prime is 164020061857. The reversal of 164020061837 is 738160020461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144167533636 + 19852528201 = 379694^2 + 140899^2 .

It is a cyclic number.

It is not a de Polignac number, because 164020061837 - 2¹² = 164020057741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164020061837.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164020061857) by changing a digit.

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 as a sum of consecutive naturals, namely, 82010030918 + 82010030919.

It is an arithmetic number, because the mean of its divisors is an integer number (82010030919).

Almost surely, 2^164020061837 is an apocalyptic number.

It is an amenable number.

164020061837 is a deficient number, since it is larger than the sum of its proper divisors (1).

164020061837 is an equidigital number, since it uses as much as digits as its factorization.

164020061837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 164020061837 in words is "one hundred sixty-four billion, twenty million, sixty-one thousand, eight hundred thirty-seven".