165213014521112 has 32 divisors (see below), whose sum is σ = 322226754922800. Its totient is φ = 79317355017600.

The previous prime is 165213014521097. The next prime is 165213014521151. The reversal of 165213014521112 is 211125410312561.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1967154314 + ... + 1967238297.

Almost surely, 2^{165213014521112} is an apocalyptic number.

It is an amenable number.

165213014521112 is a deficient number, since it is larger than the sum of its proper divisors (157013740401688).

165213014521112 is a wasteful number, since it uses less digits than its factorization.

165213014521112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3934392827 (or 3934392823 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 35.

Adding to 165213014521112 its reverse (211125410312561), we get a palindrome (376338424833673).

The spelling of 165213014521112 in words is "one hundred sixty-five trillion, two hundred thirteen billion, fourteen million, five hundred twenty-one thousand, one hundred twelve".