165144165052546 has 16 divisors (see below), whose sum is σ = 248144725238400. Its totient is φ = 82429303563520.

The previous prime is 165144165052523. The next prime is 165144165052583. The reversal of 165144165052546 is 645250561441561.

It is a happy number.

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, 4687246 + ... + 18768553.

It is an arithmetic number, because the mean of its divisors is an integer number (15509045327400).

Almost surely, 2^{165144165052546} is an apocalyptic number.

165144165052546 is a deficient number, since it is larger than the sum of its proper divisors (83000560185854).

165144165052546 is a wasteful number, since it uses less digits than its factorization.

165144165052546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23461889.

The product of its (nonzero) digits is 17280000, while the sum is 55.

The spelling of 165144165052546 in words is "one hundred sixty-five trillion, one hundred forty-four billion, one hundred sixty-five million, fifty-two thousand, five hundred forty-six".