164255511 has 8 divisors (see below), whose sum is σ = 250294144. Its totient is φ = 93860280.

The previous prime is 164255503. The next prime is 164255579. The reversal of 164255511 is 115552461.

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

It is not a de Polignac number, because 164255511 - 2³ = 164255503 is a prime.

It is a super-2 number, since 2×164255511² = 53959745787742242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164255501) 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, 3910825 + ... + 3910866.

It is an arithmetic number, because the mean of its divisors is an integer number (31286768).

Almost surely, 2^164255511 is an apocalyptic number.

164255511 is a deficient number, since it is larger than the sum of its proper divisors (86038633).

164255511 is an equidigital number, since it uses as much as digits as its factorization.

164255511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7821701.

The product of its digits is 6000, while the sum is 30.

The square root of 164255511 is about 12816.2206207602. The cubic root of 164255511 is about 547.6544865439.

The spelling of 164255511 in words is "one hundred sixty-four million, two hundred fifty-five thousand, five hundred eleven".