164673555 has 8 divisors (see below), whose sum is σ = 263477712. Its totient is φ = 87825888.

The previous prime is 164673547. The next prime is 164673557. The reversal of 164673555 is 555376461.

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

It is not a de Polignac number, because 164673555 - 2³ = 164673547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164673557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5489104 + ... + 5489133.

It is an arithmetic number, because the mean of its divisors is an integer number (32934714).

Almost surely, 2^164673555 is an apocalyptic number.

164673555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

164673555 is a deficient number, since it is larger than the sum of its proper divisors (98804157).

164673555 is a wasteful number, since it uses less digits than its factorization.

164673555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10978245.

The product of its digits is 378000, while the sum is 42.

The square root of 164673555 is about 12832.5194330654. The cubic root of 164673555 is about 548.1187017535.

The spelling of 164673555 in words is "one hundred sixty-four million, six hundred seventy-three thousand, five hundred fifty-five".