165042641632 has 96 divisors (see below), whose sum is σ = 367584182784. Its totient is φ = 72282585600.

The previous prime is 165042641629. The next prime is 165042641633. The reversal of 165042641632 is 236146240561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165042641633) 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, 1279957 + ... + 1402987.

It is an arithmetic number, because the mean of its divisors is an integer number (3829001904).

Almost surely, 2^165042641632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165042641632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183792091392).

165042641632 is an abundant number, since it is smaller than the sum of its proper divisors (202541541152).

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

165042641632 is a wasteful number, since it uses less digits than its factorization.

165042641632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123192 (or 123184 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 165042641632 in words is "one hundred sixty-five billion, forty-two million, six hundred forty-one thousand, six hundred thirty-two".