165532689796 has 6 divisors (see below), whose sum is σ = 289682207150. Its totient is φ = 82766344896.

The previous prime is 165532689769. The next prime is 165532689809. The reversal of 165532689796 is 697986235561.

It can be written as a sum of positive squares in only one way, i.e., 139288689796 + 26244000000 = 373214^2 + 162000^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20691586221 + ... + 20691586228.

Almost surely, 2^165532689796 is an apocalyptic number.

It is an amenable number.

165532689796 is a deficient number, since it is larger than the sum of its proper divisors (124149517354).

165532689796 is a wasteful number, since it uses less digits than its factorization.

165532689796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41383172453 (or 41383172451 counting only the distinct ones).

The product of its digits is 146966400, while the sum is 67.

The spelling of 165532689796 in words is "one hundred sixty-five billion, five hundred thirty-two million, six hundred eighty-nine thousand, seven hundred ninety-six".