165505413004242 has 32 divisors (see below), whose sum is σ = 332696586850560. Its totient is φ = 54887694807120.

The previous prime is 165505413004207. The next prime is 165505413004259. The reversal of 165505413004242 is 242400314505561.

It is a junction number, because it is equal to n+sod(n) for n = 165505413004194 and 165505413004203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19392492 + ... + 26590967.

It is an arithmetic number, because the mean of its divisors is an integer number (10396768339080).

Almost surely, 2^{165505413004242} is an apocalyptic number.

165505413004242 is an abundant number, since it is smaller than the sum of its proper divisors (167191173846318).

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

165505413004242 is a wasteful number, since it uses less digits than its factorization.

165505413004242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45986518.

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 165505413004242 in words is "one hundred sixty-five trillion, five hundred five billion, four hundred thirteen million, four thousand, two hundred forty-two".