165525266 has 8 divisors (see below), whose sum is σ = 248451840. Its totient is φ = 82707988.

The previous prime is 165525259. The next prime is 165525287. The reversal of 165525266 is 662525561.

It is a happy number.

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

It is a super-2 number, since 2×165525266² = 54797227368741512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23426 + ... + 29661.

It is an arithmetic number, because the mean of its divisors is an integer number (31056480).

Almost surely, 2^165525266 is an apocalyptic number.

165525266 is a deficient number, since it is larger than the sum of its proper divisors (82926574).

165525266 is a wasteful number, since it uses less digits than its factorization.

165525266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54648.

The product of its digits is 108000, while the sum is 38.

The square root of 165525266 is about 12865.6622837691. The cubic root of 165525266 is about 549.0620553763.

The spelling of 165525266 in words is "one hundred sixty-five million, five hundred twenty-five thousand, two hundred sixty-six".