164621054155 has 8 divisors (see below), whose sum is σ = 197547458832. Its totient is φ = 131695380768.

The previous prime is 164621054131. The next prime is 164621054167. The reversal of 164621054155 is 551450126461.

164621054155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164621054155 - 2⁷ = 164621054027 is a prime.

It is a super-2 number, since 2×164621054155² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 699837 + ... + 904993.

It is an arithmetic number, because the mean of its divisors is an integer number (24693432354).

Almost surely, 2^164621054155 is an apocalyptic number.

164621054155 is a deficient number, since it is larger than the sum of its proper divisors (32926404677).

164621054155 is a wasteful number, since it uses less digits than its factorization.

164621054155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365645.

The product of its (nonzero) digits is 144000, while the sum is 40.

The spelling of 164621054155 in words is "one hundred sixty-four billion, six hundred twenty-one million, fifty-four thousand, one hundred fifty-five".