165550541250 has 40 divisors (see below), whose sum is σ = 413743922064. Its totient is φ = 44146810000.

The previous prime is 165550541203. The next prime is 165550541257. The reversal of 165550541250 is 52145055561.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 165550541199 and 165550541208.

It is not an unprimeable number, because it can be changed into a prime (165550541257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 22069656 + ... + 22077155.

Almost surely, 2^165550541250 is an apocalyptic number.

165550541250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165550541250 is an abundant number, since it is smaller than the sum of its proper divisors (248193380814).

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

165550541250 is an equidigital number, since it uses as much as digits as its factorization.

165550541250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44146836 (or 44146821 counting only the distinct ones).

The product of its (nonzero) digits is 150000, while the sum is 39.

The spelling of 165550541250 in words is "one hundred sixty-five billion, five hundred fifty million, five hundred forty-one thousand, two hundred fifty".