164440650016155 has 64 divisors (see below), whose sum is σ = 279651717900288. Its totient is φ = 82225883965440.

The previous prime is 164440650016133. The next prime is 164440650016157. The reversal of 164440650016155 is 551610056044461.

It is not a de Polignac number, because 164440650016155 - 2⁸ = 164440650015899 is a prime.

It is a super-3 number, since 3×164440650016155³ (a number of 44 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (164440650016157) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 309893194 + ... + 310423376.

It is an arithmetic number, because the mean of its divisors is an integer number (4369558092192).

Almost surely, 2^{164440650016155} is an apocalyptic number.

164440650016155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

164440650016155 is a deficient number, since it is larger than the sum of its proper divisors (115211067884133).

164440650016155 is a wasteful number, since it uses less digits than its factorization.

164440650016155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534876.

The product of its (nonzero) digits is 1728000, while the sum is 48.

The spelling of 164440650016155 in words is "one hundred sixty-four trillion, four hundred forty billion, six hundred fifty million, sixteen thousand, one hundred fifty-five".