161365145074 has 40 divisors (see below), whose sum is σ = 283792838400. Its totient is φ = 68808563208.

The previous prime is 161365145017. The next prime is 161365145101. The reversal of 161365145074 is 470541563161.

161365145074 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 161365145074.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 871167 + ... + 1040029.

It is an arithmetic number, because the mean of its divisors is an integer number (7094820960).

Almost surely, 2^161365145074 is an apocalyptic number.

161365145074 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

161365145074 is a deficient number, since it is larger than the sum of its proper divisors (122427693326).

161365145074 is an equidigital number, since it uses as much as digits as its factorization.

161365145074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169092 (or 169071 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 161365145074 in words is "one hundred sixty-one billion, three hundred sixty-five million, one hundred forty-five thousand, seventy-four".