165066463544 has 32 divisors (see below), whose sum is σ = 311171220000. Its totient is φ = 82088502912.

The previous prime is 165066463459. The next prime is 165066463547. The reversal of 165066463544 is 445364660561.

It is a junction number, because it is equal to n+sod(n) for n = 165066463492 and 165066463501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165066463547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1225022 + ... + 1353074.

It is an arithmetic number, because the mean of its divisors is an integer number (9724100625).

Almost surely, 2^165066463544 is an apocalyptic number.

It is an amenable number.

165066463544 is a deficient number, since it is larger than the sum of its proper divisors (146104756456).

165066463544 is a wasteful number, since it uses less digits than its factorization.

165066463544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128927 (or 128923 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 50.

The spelling of 165066463544 in words is "one hundred sixty-five billion, sixty-six million, four hundred sixty-three thousand, five hundred forty-four".