165332047540 has 48 divisors (see below), whose sum is σ = 383324114880. Its totient is φ = 59396391680.

The previous prime is 165332047519. The next prime is 165332047541. The reversal of 165332047540 is 45740233561.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 165332047493 and 165332047502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165332047541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4508905 + ... + 4545424.

It is an arithmetic number, because the mean of its divisors is an integer number (7985919060).

Almost surely, 2^165332047540 is an apocalyptic number.

165332047540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165332047540 is an abundant number, since it is smaller than the sum of its proper divisors (217992067340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165332047540 is a wasteful number, since it uses less digits than its factorization.

165332047540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9054432 (or 9054430 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 40.

The spelling of 165332047540 in words is "one hundred sixty-five billion, three hundred thirty-two million, forty-seven thousand, five hundred forty".