165155600650 has 48 divisors (see below), whose sum is σ = 315831571200. Its totient is φ = 64222587200.

The previous prime is 165155600629. The next prime is 165155600653. The reversal of 165155600650 is 56006551561.

It is not an unprimeable number, because it can be changed into a prime (165155600653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114315 + ... + 585985.

It is an arithmetic number, because the mean of its divisors is an integer number (6579824400).

Almost surely, 2^165155600650 is an apocalyptic number.

165155600650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165155600650 is a deficient number, since it is larger than the sum of its proper divisors (150675970550).

165155600650 is a wasteful number, since it uses less digits than its factorization.

165155600650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471879 (or 471874 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 40.

It can be divided in two parts, 16515 and 5600650, that added together give a palindrome (5617165).

The spelling of 165155600650 in words is "one hundred sixty-five billion, one hundred fifty-five million, six hundred thousand, six hundred fifty".