165642554060 has 36 divisors (see below), whose sum is σ = 356127091488. Its totient is φ = 64716146208.

The previous prime is 165642554053. The next prime is 165642554081. The reversal of 165642554060 is 60455246561.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2202644 + ... + 2276603.

It is an arithmetic number, because the mean of its divisors is an integer number (9892419208).

Almost surely, 2^165642554060 is an apocalyptic number.

165642554060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165642554060 is an abundant number, since it is smaller than the sum of its proper divisors (190484537428).

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

165642554060 is a wasteful number, since it uses less digits than its factorization.

165642554060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4479342 (or 4479297 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 44.

The spelling of 165642554060 in words is "one hundred sixty-five billion, six hundred forty-two million, five hundred fifty-four thousand, sixty".