164551616455 has 16 divisors (see below), whose sum is σ = 198786240000. Its totient is φ = 130760641440.

The previous prime is 164551616417. The next prime is 164551616513. The reversal of 164551616455 is 554616155461.

It is not a de Polignac number, because 164551616455 - 2²³ = 164543227847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 164551616399 and 164551616408.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 457960 + ... + 734050.

It is an arithmetic number, because the mean of its divisors is an integer number (12424140000).

Almost surely, 2^164551616455 is an apocalyptic number.

164551616455 is a deficient number, since it is larger than the sum of its proper divisors (34234623545).

164551616455 is a wasteful number, since it uses less digits than its factorization.

164551616455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276894.

The product of its digits is 2160000, while the sum is 49.

The spelling of 164551616455 in words is "one hundred sixty-four billion, five hundred fifty-one million, six hundred sixteen thousand, four hundred fifty-five".