155072722071 has 16 divisors (see below), whose sum is σ = 209407426560. Its totient is φ = 102060248160.

The previous prime is 155072722027. The next prime is 155072722109. The reversal of 155072722071 is 170227270551.

155072722071 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 155072722071 - 2⁷ = 155072721943 is a prime.

It is a super-2 number, since 2×155072722071² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155072722271) 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 15 ways as a sum of consecutive naturals, for example, 2055901 + ... + 2129993.

It is an arithmetic number, because the mean of its divisors is an integer number (13087964160).

Almost surely, 2^155072722071 is an apocalyptic number.

155072722071 is a deficient number, since it is larger than the sum of its proper divisors (54334704489).

155072722071 is an equidigital number, since it uses as much as digits as its factorization.

155072722071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83006.

The product of its (nonzero) digits is 68600, while the sum is 39.

The spelling of 155072722071 in words is "one hundred fifty-five billion, seventy-two million, seven hundred twenty-two thousand, seventy-one".