164425911 has 16 divisors (see below), whose sum is σ = 244241760. Its totient is φ = 97695360.

The previous prime is 164425883. The next prime is 164425913. The reversal of 164425911 is 119524461.

It is not a de Polignac number, because 164425911 - 2⁹ = 164425399 is a prime.

It is a super-3 number, since 3×164425911³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164425913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71560 + ... + 73821.

It is an arithmetic number, because the mean of its divisors is an integer number (15265110).

Almost surely, 2^164425911 is an apocalyptic number.

164425911 is a deficient number, since it is larger than the sum of its proper divisors (79815849).

164425911 is a wasteful number, since it uses less digits than its factorization.

164425911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145426.

The product of its digits is 8640, while the sum is 33.

The square root of 164425911 is about 12822.8667231630. The cubic root of 164425911 is about 547.8438014962.

The spelling of 164425911 in words is "one hundred sixty-four million, four hundred twenty-five thousand, nine hundred eleven".