165418144984 has 16 divisors (see below), whose sum is σ = 310687410600. Its totient is φ = 82568168832.

The previous prime is 165418144981. The next prime is 165418144993. The reversal of 165418144984 is 489441814561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165418144981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17607969 + ... + 17617360.

Almost surely, 2^165418144984 is an apocalyptic number.

It is an amenable number.

165418144984 is a deficient number, since it is larger than the sum of its proper divisors (145269265616).

165418144984 is a wasteful number, since it uses less digits than its factorization.

165418144984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35225922 (or 35225918 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 55.

The spelling of 165418144984 in words is "one hundred sixty-five billion, four hundred eighteen million, one hundred forty-four thousand, nine hundred eighty-four".