164020277 has 8 divisors (see below), whose sum is σ = 167822592. Its totient is φ = 160254000.

The previous prime is 164020273. The next prime is 164020309. The reversal of 164020277 is 772020461.

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 164020277 - 2² = 164020273 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164020273) 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, 308 + ... + 18114.

It is an arithmetic number, because the mean of its divisors is an integer number (20977824).

Almost surely, 2^164020277 is an apocalyptic number.

It is an amenable number.

164020277 is a deficient number, since it is larger than the sum of its proper divisors (3802315).

164020277 is a wasteful number, since it uses less digits than its factorization.

164020277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18019.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 164020277 is about 12807.0401342387. The cubic root of 164020277 is about 547.3929255521.

The spelling of 164020277 in words is "one hundred sixty-four million, twenty thousand, two hundred seventy-seven".