165328513860 has 24 divisors (see below), whose sum is σ = 462919838976. Its totient is φ = 44087603680.

The previous prime is 165328513793. The next prime is 165328513967. The reversal of 165328513860 is 68315823561.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1377737556 + ... + 1377737675.

It is an arithmetic number, because the mean of its divisors is an integer number (19288326624).

Almost surely, 2^165328513860 is an apocalyptic number.

165328513860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165328513860 is an abundant number, since it is smaller than the sum of its proper divisors (297591325116).

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

165328513860 is a wasteful number, since it uses less digits than its factorization.

165328513860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2755475243 (or 2755475241 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 48.

The spelling of 165328513860 in words is "one hundred sixty-five billion, three hundred twenty-eight million, five hundred thirteen thousand, eight hundred sixty".