165213662 has 4 divisors (see below), whose sum is σ = 247820496. Its totient is φ = 82606830.

The previous prime is 165213661. The next prime is 165213689. The reversal of 165213662 is 266312561.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×165213662² = 54591108222900488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165213661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41303414 + ... + 41303417.

It is an arithmetic number, because the mean of its divisors is an integer number (61955124).

Almost surely, 2^165213662 is an apocalyptic number.

165213662 is a deficient number, since it is larger than the sum of its proper divisors (82606834).

165213662 is an equidigital number, since it uses as much as digits as its factorization.

165213662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82606833.

The product of its digits is 12960, while the sum is 32.

The square root of 165213662 is about 12853.5466700829. The cubic root of 165213662 is about 548.7172995390.

The spelling of 165213662 in words is "one hundred sixty-five million, two hundred thirteen thousand, six hundred sixty-two".