164051780039 has 20 divisors (see below), whose sum is σ = 192374517456. Its totient is φ = 139886836992.

The previous prime is 164051779921. The next prime is 164051780099. The reversal of 164051780039 is 930087150461.

164051780039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 164051780039 - 2⁸ = 164051779783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164051780099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 286382 + ... + 640404.

Almost surely, 2^164051780039 is an apocalyptic number.

164051780039 is a deficient number, since it is larger than the sum of its proper divisors (28322737417).

164051780039 is an frugal number, since it uses more digits than its factorization.

164051780039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354244 (or 354223 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 164051780039 in words is "one hundred sixty-four billion, fifty-one million, seven hundred eighty thousand, thirty-nine".